| 2009 |
|---|
| 121 | | Johann Christoph Freytag,
Thomas Ruf,
Wolfgang Lehner,
Gottfried Vossen:
Datenbanksysteme in Business, Technologie und Web (BTW 2009), 13. Fachtagung des GI-Fachbereichs "Datenbanken und Informationssysteme" (DBIS), Proceedings, 2.-6. März 2009, Münster, Germany
GI 2009 |
| 120 | EE | Stephan Hagemann,
Gottfried Vossen:
ActiveTags: Making Tags More Useful Anywhere on the Web.
ADC 2009: 41-48 |
| 119 | EE | Gunnar Thies,
Gottfried Vossen:
Modelling Web-Oriented Architectures.
APCCM 2009: 97-105 |
| 2008 |
|---|
| 118 | | Gottfried Vossen:
Datenmodelle, Datenbanksprachen und Datenbankmanagementsysteme, 5. Auflage
Oldenbourg 2008 |
| 117 | | Miltiadis D. Lytras,
John M. Carroll,
Ernesto Damiani,
Robert D. Tennyson,
David E. Avison,
Gottfried Vossen,
Patricia Ordóñez de Pablos:
The Open Knowlege Society. A Computer Science and Information Systems Manifesto, First World Summit on the Knowledge Society, WSKS 2008, Athens, Greece, September 24-26, 2008. Proceedings
Springer 2008 |
| 116 | | Axel Winkelmann,
Gottfried Vossen,
Jörg Becker,
Till Haselmann,
Sebastian Herwig,
Jens Pöppelbuß:
Bewertungsmechanismen zur beruflichen Weiterqualifizierung in sozialen Web 2.0-Netzwerken.
GI Jahrestagung (2) 2008: 955-961 |
| 115 | | Joachim Schwieren,
Gottfried Vossen:
ID-Services: An RFID Middleware Architecture for Mobile Applications.
IWRT 2008: 19-31 |
| 114 | | Mohamed Amine Chatti,
Daniel Dahl,
Matthias Jarke,
Gottfried Vossen:
Towards Web 2.0 Driven Learning Environments.
WEBIST (1) 2008: 370-375 |
| 2007 |
|---|
| 113 | | Gottfried Vossen,
Stephan Hagemann:
Unleashing Web 2.0: From Concepts to Creativity
Morgan Kaufmann 2007 |
| 112 | EE | Till Haselmann,
Jens Lechtenbörger,
Gottfried Vossen:
DataWarehouse Detective: Schema Design Made Easy.
BTW 2007: 606-608 |
| 111 | | Daniel Dahl,
Gottfried Vossen:
Added Value for e-Learning Repositories through Social Tagging of Learning Objects.
BTW Workshops 2007: 270-279 |
| 110 | EE | Joachim Schwieren,
Gottfried Vossen:
Implementing Physical Hyperlinks for Mobile Applications Using RFID Tags.
IDEAS 2007: 154-162 |
| 109 | | Gottfried Vossen,
Daniel Dahl:
Share.loc - Transparenz und Integration von Lernobjekten an der Universität Münster.
EMISA Forum 27(2): 15-24 (2007) |
| 108 | | Gunnar Thies,
Gottfried Vossen:
DB2 goes SQL 2003 - Native SQL/XML-Unterstützung der IBM DB2-Datenbank.
EMISA Forum 27(2): 25-39 (2007) |
| 107 | EE | Gottfried Vossen,
Miltiadis D. Lytras,
Nick Koudas:
Editorial: Revisiting the (Machine) Semantic Web: The Missing Layers for the Human Semantic Web.
IEEE Trans. Knowl. Data Eng. 19(2): 145-148 (2007) |
| 2006 |
|---|
| 106 | EE | Dominik Kuropka,
Gottfried Vossen,
Mathias Weske:
Workflows in Computation Grids.
GCC Workshops 2006: 296-301 |
| 105 | EE | Gottfried Vossen,
Peter Westerkamp:
Towards the Next Generation of E-Learning Standards: SCORM for Service-Oriented Environments.
ICALT 2006: 1031-1035 |
| 104 | EE | Daniel Dahl,
Gottfried Vossen,
Peter Westerkamp:
share.loc - A Multi Tiered Interoperable E-Learning Metadata Repository.
ICALT 2006: 891-895 |
| 103 | EE | Matteo Golfarelli,
Jens Lechtenbörger,
Stefano Rizzi,
Gottfried Vossen:
Schema versioning in data warehouses: Enabling cross-version querying via schema augmentation.
Data Knowl. Eng. 59(2): 435-459 (2006) |
| 102 | EE | Bodo Hüsemann,
Gottfried Vossen:
OntoMedia Semantic Multimedia Metadata Integration and Organization.
Int. J. Semantic Web Inf. Syst. 2(3): 1-16 (2006) |
| 2005 |
|---|
| 101 | | Gottfried Vossen,
Frank Leymann,
Peter C. Lockemann,
Wolffried Stucky:
Datenbanksysteme in Business, Technologie und Web, 11. Fachtagung des GI-Fachbereichs "Datenbanken und Informationssysteme" (DBIS), Karlsruhe, 2.-4. März 2005
GI 2005 |
| 100 | EE | Bodo Hüsemann,
Gottfried Vossen:
Ontology Engineering from a Database Perspective.
ASIAN 2005: 49-63 |
| 99 | EE | Gottfried Vossen,
Peter Westerkamp:
Mediators for Integrating Content into Service-Based e-Learning Environments.
ICALT 2005: 580-584 |
| 98 | | Gottfried Vossen:
Für Sie gesurft - neue (und alte) Tipps aus dem WWW, FGDB-Edition, Folge 8.
Datenbank-Spektrum 14: 49-51 (2005) |
| 97 | | Gottfried Vossen,
Stephan Hagemann,
Bodo Hüsemann,
Jens Lechtenbörger,
Carolin Letz,
Joachim Schwieren,
Peter Westerkamp:
Der Lehrstuhl für Informatik, insbes. Datenbanken und Informationssysteme, im Institut für Wirtschaftsinformatik der Universität Münster stellt sich vor.
Datenbank-Spektrum 14: 53-57 (2005) |
| 96 | EE | Jan Van den Bussche,
Stijn Vansummeren,
Gottfried Vossen:
Towards practical meta-querying.
Inf. Syst. 30(4): 317-332 (2005) |
| 95 | EE | Victor Pankratius,
Gottfried Vossen:
Reengineering of educational material: a systematic approach.
Int. J. Knowledge Learning 1(3): 229-248 (2005) |
| 2004 |
|---|
| 94 | EE | Jan Van den Bussche,
Stijn Vansummeren,
Gottfried Vossen:
Meta-SQL: Towards Practical Meta-Querying.
EDBT 2004: 823-825 |
| 93 | EE | Matteo Golfarelli,
Jens Lechtenbörger,
Stefano Rizzi,
Gottfried Vossen:
Schema Versioning in Data Warehouses.
ER (Workshops) 2004: 415-428 |
| 92 | EE | K. Vidyasankar,
Gottfried Vossen:
A Multi-Level Model for Web Service Composition.
ICWS 2004: 462- |
| 91 | | Gottfried Vossen:
Für Sie gesurft - neue (und alte) Tipps aus dem WWW, FGDB-Edition, Folge 4.
Datenbank-Spektrum 10(9): 50-52 (2004) |
| 90 | | Gottfried Vossen:
Für Sie gesurft - neue (und alte) Tipps aus dem WWW (Folge 2).
Datenbank-Spektrum 8: 50-53 (2004) |
| 89 | | Gottfried Vossen:
Für Sie gesurft - neue (und alte) Tipps aus dem WWW, FGDB-Edition, Folge 3.
Datenbank-Spektrum 9: 48-51 (2004) |
| 88 | | Gottfried Vossen,
Peter Westerkamp:
XLX and L2P - Platforms for Blended Learning.
EMISA Forum 24(2): 18-20 (2004) |
| 87 | EE | Pavol Návrat,
Yannis Manolopoulos,
Gottfried Vossen:
Special issue on ADBIS 2002: advances in databases and information systems.
Inf. Syst. 29(6): 437-438 (2004) |
| 2003 |
|---|
| 86 | | Walter Oberschelp,
Gottfried Vossen:
Rechneraufbau und Rechnerstrukturen, 9. Auflage
Oldenbourg 2003 |
| 85 | | Erhard Rahm,
Gottfried Vossen:
Web & Datenbanken. Konzepte, Architekturen, Anwendungen
dpunkt 2003 |
| 84 | EE | Gottfried Vossen,
Peter Westerkamp:
E-Learning as a Web Service.
IDEAS 2003: 242-249 |
| 83 | EE | Gottfried Vossen,
Peter Jaeschke:
Learning Objects as a Uniform Foundation for E- Learning Platforms.
IDEAS 2003: 278-289 |
| 82 | | Markus Grüne,
Kirsten Keferstein,
Kirsten Lenz,
Andreas Oberweis,
Marco von Mevius,
Gottfried Vossen:
Workflow-gestütztes Lernobjekt-Management.
Wirtschaftsinformatik (1) 2003: 801-818 |
| 81 | | Peter Jaeschke,
Andreas Oberweis,
Gottfried Vossen:
Web-basiertes Lernen: Eine Übersicht über Stand und Entwicklungen.
Web & Datenbanken 2003: 363-397 |
| 80 | EE | Jens Lechtenbörger,
Gottfried Vossen:
On the computation of relational view complements.
ACM Trans. Database Syst. 28(2): 175-208 (2003) |
| 79 | | Gottfried Vossen:
Für Sie gesurft.
Datenbank-Spektrum 7: 62-65 (2003) |
| 78 | EE | Jens Lechtenbörger,
Gottfried Vossen:
Multidimensional normal forms for data warehouse design.
Inf. Syst. 28(5): 415-434 (2003) |
| 77 | EE | Kenneth A. Ross,
Mitch Cherniack,
Gottfried Vossen:
Reminiscences on Influential Papers.
SIGMOD Record 32(3): 91 (2003) |
| 76 | | Jens Lechtenbörger,
Gottfried Vossen:
Quality-oriented Data Warehouse Schema Design.
it - Information Technology 45(4): 190-195 (2003) |
| 2002 |
|---|
| 75 | | Gerhard Weikum,
Gottfried Vossen:
Transactional Information Systems: Theory, Algorithms, and the Practice of Concurrency Control and Recovery
Morgan Kaufmann 2002 |
| 74 | | Bodo Hüsemann,
Jens Lechtenbörger,
Gottfried Vossen,
Peter Westerkamp:
XLX - A Platform for Graduate-Level Exercises.
ICCE 2002: 1262-1266 |
| 73 | EE | Carolin Letz,
Eric Tobias Henn,
Gottfried Vossen:
Consistency in Data Warehouse Dimensions.
IDEAS 2002: 224-232 |
| 72 | EE | Jens Lechtenbörger,
Gottfried Vossen:
On the Computation of Relational View Complements.
PODS 2002: 142-149 |
| 71 | | Gottfried Vossen:
Tutorium: Web basiertes Lernen: Stand, Konzepte und Entwicklungen.
Promise 2002: 162 |
| 70 | EE | Jan Van den Bussche,
Stijn Vansummeren,
Gottfried Vossen:
Towards practical meta-querying
CoRR cs.DB/0202037: (2002) |
| 69 | | Jens Lechtenbörger,
Hua Shu,
Gottfried Vossen:
Aggregate Queries Over Conditional Tables.
J. Intell. Inf. Syst. 19(3): 343-362 (2002) |
| 2001 |
|---|
| 68 | | Dan Suciu,
Gottfried Vossen:
The World Wide Web and Databases, Third International Workshop WebDB 2000, Dallas, Texas, USA, Maaay 18-19, 2000, Selected Papers
Springer 2001 |
| 67 | EE | Dominique Laurent,
Jens Lechtenbörger,
Nicolas Spyratos,
Gottfried Vossen:
Monotonic complements for independent data warehouses.
VLDB J. 10(4): 295-315 (2001) |
| 2000 |
|---|
| 66 | | Manfred A. Jeusfeld,
Hua Shu,
Martin Staudt,
Gottfried Vossen:
Proceedings of the Second Intl. Workshop on Design and Management of Data Warehouses, DMDW 2000, Stockholm, Sweden, June 5-6, 2000
CEUR-WS.org 2000 |
| 65 | | Gottfried Vossen:
Datenmodelle, Datenbanksprachen und Datenbankmanagementsysteme, 4. Auflage
Oldenbourg 2000 |
| 64 | EE | Ute Masermann,
Gottfried Vossen:
Design and Implementation of a Novel Approach to Keyword Searching in Relational Databases.
ADBIS-DASFAA 2000: 171-184 |
| 63 | EE | Bodo Hüsemann,
Jens Lechtenbörger,
Gottfried Vossen:
Conceptual data warehouse modeling.
DMDW 2000: 6 |
| 62 | EE | Ute Masermann,
Gottfried Vossen:
SISQL: Schema-Independent Database Querying (On and Off the Web).
IDEAS 2000: 55-64 |
| 61 | EE | Jens Lechtenbörger,
Gottfried Vossen:
On Herbrand Semantics and Conflict Serializability of Read-Write Transactions.
PODS 2000: 187-194 |
| 60 | EE | Johann Eder,
Tatjana Welzer,
Gottfried Vossen:
Guest Editorial: Special Issue On ADBIS 1999.
Inf. Syst. 25(8): 465-466 (2000) |
| 59 | EE | Dan Suciu,
Gottfried Vossen:
Report on WebDB'2000: 3rd International Workshop on the Web and Databases.
SIGKDD Explorations 2(1): 80-82 (2000) |
| 1999 |
|---|
| 58 | EE | Dominique Laurent,
Jens Lechtenbörger,
Nicolas Spyratos,
Gottfried Vossen:
Complements for Data Warehouses.
ICDE 1999: 490-499 |
| 57 | EE | Gottfried Vossen,
Mathias Weske:
The WASA2 Object-Oriented Workflow Management System.
SIGMOD Conference 1999: 587-589 |
| 56 | EE | Jesús E. Villadangos,
Federico Fariña,
José Ramón González de Mendívil,
José Ramón Garitagoitia,
José M. Bernabéu-Aubán,
Gottfried Vossen:
Resolving Distributed Deadlocks in the OR Request Model.
SRDS 1999: 288-289 |
| 55 | | Jens Lechtenbörger,
Gottfried Vossen:
Unabhängigkeit von Datenwarenhäusern mit Sternschema.
EMISA Forum 9(2): 11-25 (1999) |
| 54 | EE | Frank Neven,
Jan Van den Bussche,
Dirk Van Gucht,
Gottfried Vossen:
Typed Query Languages for Databases Containing Queries.
Inf. Syst. 24(7): 569-595 (1999) |
| 1998 |
|---|
| 53 | | Klaus Pohl,
Andy Schürr,
Gottfried Vossen:
Modellierung '98, Proceedings des GI-Workshops in Münster, 11.-13. März 1998
CEUR-WS.org 1998 |
| 52 | | Witold Litwin,
Tadeusz Morzy,
Gottfried Vossen:
Advances in Databases and Information Systems, Second East European Symposium, ADBIS'98, Poznan, Poland, Spetember 7-10, 1998, Proceedings
Springer 1998 |
| 51 | EE | Mathias Weske,
Gottfried Vossen,
Claudia Bauzer Medeiros,
Fatima Pires:
Workflow Management in Geoprocessing Applications.
ACM-GIS 1998: 88-93 |
| 50 | EE | Frank Neven,
Jan Van den Bussche,
Dirk Van Gucht,
Gottfried Vossen:
Typed Query Languages for Databases Containing Queries.
PODS 1998: 189-196 |
| 49 | EE | Dan Suciu,
Gottfried Vossen:
Special Issue on Semistructured Data.
Inf. Syst. 23(8): 517-519 (1998) |
| 48 | EE | Ute Masermann,
Gottfried Vossen:
Suchmaschinen und Anfragen im World Wide Web.
Informatik Spektrum 21(1): 9-15 (1998) |
| 1997 |
|---|
| 47 | | Gottfried Vossen:
The CORBA Specification for Cooperation in Heterogeneous Information Systems.
CIA 1997: 101-115 |
| 46 | | T. Reuß,
Gottfried Vossen,
Mathias Weske:
Modeling Samples Processing in Laboratory Environments as Scientific Workflows.
DEXA Workshop 1997: 49-54 |
| 45 | | Gottfried Vossen:
Transactional Workflows.
DOOD 1997: 20-25 |
| 44 | EE | Jürgen Ebert,
Gottfried Vossen:
I-Serializability: Generalized Correctness for Transaction-Based Environments.
Inf. Process. Lett. 63(4): 221-227 (1997) |
| 43 | EE | Richard McClatchey,
Gottfried Vossen:
Workshop on Workflow Management in Scientific and Engineering Applications - Report.
SIGMOD Record 26(4): 49-53 (1997) |
| 1996 |
|---|
| 42 | | Joao Meidanis,
Gottfried Vossen,
Mathias Weske:
Using Workflow Management in DNA Sequencing.
CoopIS 1996: 114-123 |
| 41 | | Jan Van den Bussche,
Dirk Van Gucht,
Gottfried Vossen:
Reflective Programming in the Relational Algebra.
J. Comput. Syst. Sci. 52(3): 537-549 (1996) |
| 1995 |
|---|
| 40 | | Christian Fahrner,
Gottfried Vossen:
Transformation relationaler Datenbank-Schemas in objekt-orientierte Schemas gemäß ODMG-93.
BTW 1995: 111-129 |
| 39 | | Claudia Bauzer Medeiros,
Gottfried Vossen,
Mathias Weske:
WASA: A Workflow-Based Architecture to Support Scientific Database Applications (Extended Abstract)
DEXA 1995: 574-583 |
| 38 | | Christian Fahrner,
Gottfried Vossen:
Transforming Relational Database Schemas into Object-Oriented Schemas according to ODMG-93.
DOOD 1995: 429-446 |
| 37 | | Gottfried Vossen:
Verteilte Informations-Systeme: Konzepte und Entwurfstechniken.
GI Jahrestagung 1995: 27-34 |
| 36 | | Gottfried Vossen:
Database Transaction Models.
Computer Science Today 1995: 560-574 |
| 35 | EE | Christian Fahrner,
Gottfried Vossen:
A Survey of Database Design Transformations Based on the Entity-Relationship Model.
Data Knowl. Eng. 15(3): 213-250 (1995) |
| 34 | | Gottfried Vossen:
On Formal Models for Object-Oriented Databases.
OOPS Messenger 6(3): 1-19 (1995) |
| 1994 |
|---|
| 33 | | Gottfried Vossen:
Datenmodelle, Datenbanksprachen und Datenbank-Management-Systeme. 2. Auflage
Addison-Wesley 1994 |
| 32 | | Johann Christoph Freytag,
David Maier,
Gottfried Vossen:
Query Processing for Advanced Database Systems, Selected Contributions from a Workshop on "Query Processing in Object-Oriented, Complex-Object and Nested Relation Databases", Interationales Begegnungs- und Forschungszentrum für Informatik, Schloss Dagstuhl, Germany, June 1991
Morgan Kaufmann 1994 |
| 31 | EE | Gottfried Vossen:
Formalization of OODB Models.
KRDB 1994 |
| 1993 |
|---|
| 30 | | Margret Groß-Hardt,
Gottfried Vossen:
Zur Entwicklung eines klassenlosen Objekt-Modells.
BTW 1993: 306-315 |
| 29 | | Margret Groß-Hardt,
Gottfried Vossen:
Towards Class-less Object Models for Engineering Design Applications.
DEXA 1993: 36-47 |
| 28 | | Jan Van den Bussche,
Gottfried Vossen:
An Extension of Path Expressions to Simplify Navigation in Object-Oriented Queries.
DOOD 1993: 267-282 |
| 27 | EE | Jan Van den Bussche,
Dirk Van Gucht,
Gottfried Vossen:
Reflective Programming in the Relational Algebra.
PODS 1993: 17-25 |
| 26 | | Victor Vianu,
Gottfried Vossen:
Static and Dynamic Aspects of Goal-Oriented Concurrency Control.
Ann. Math. Artif. Intell. 7(1-4): 257-287 (1993) |
| 1992 |
|---|
| 25 | | Gottfried Vossen:
Multiversions-Objektkonstellationen für Entwurfs-Datenbanken.
Grundlagen von Datenbanken 1992: 162 |
| 24 | | Gottfried Vossen:
Formale Modelle für objekt-orientierte Datenbanken.
Datenbank Rundbrief 9: 32-33 (1992) |
| 23 | | Gottfried Vossen:
On Formal Models for Object-Oriented Databases.
EMISA Forum 2(2): 22-40 (1992) |
| 22 | | Victor Vianu,
Gottfried Vossen:
Conceptual Level Concurrency Control of Relational Update Transactions.
Theor. Comput. Sci. 95(1): 1-42 (1992) |
| 1991 |
|---|
| 21 | | Gottfried Vossen:
Modellbildung für Datenbank-Transaktionen.
Entwicklungstendenzen bei Datenbanksystemen 1991: 277-316 |
| 20 | | Gottfried Vossen,
Kurt-Ulrich Witt:
SUXESS: Towards a Sound Unification of Extensions of the Relational Data Model.
Data Knowl. Eng. 6: 75-92 (1991) |
| 19 | EE | Gottfried Vossen:
Bibliography on Object-Oriented Database Management.
SIGMOD Record 20(1): 24-46 (1991) |
| 18 | | Axel Lukassen,
Gottfried Vossen:
A Formal Framework for Independence with Respect to Transactions in the Universal Relation Model.
Theor. Comput. Sci. 82(2): 303-327 (1991) |
| 1990 |
|---|
| 17 | | Gottfried Vossen,
Kurt-Ulrich Witt:
Das DB2-Handbuch.
Addison-Wesley 1990 |
| 16 | | Gottfried Vossen:
Datenmodelle, Datenbanksprachen und Datenbank-Management-Systeme
Addison-Wesley 1990 |
| 15 | | Gottfried Vossen,
Roger Schwarz:
Dynamic Scheduling of Transactions in Design Databases based on Version Consistency.
DEXA 1990: 196-202 |
| 1989 |
|---|
| 14 | | Gottfried Vossen,
Kurt-Ulrich Witt:
SUXESS: Towards a Sound Unification of Extensions of the Relational Data Model.
FMLDO 1989: 1-20 |
| 13 | | Gottfried Vossen,
Roger Schwarz:
Dynamic Scheduling of Transactions in Design Databases based on Version Consistency.
FMLDO 1989: 199-217 |
| 12 | EE | ShouHan Wang,
Gottfried Vossen:
Towards Efficient Algorithms for Deadlock Detection and Resolution in Distributed Systems.
ICDE 1989: 287-294 |
| 11 | EE | Victor Vianu,
Gottfried Vossen:
Goal-Oriented Concurrency Control.
MFDBS 1989: 398-414 |
| 1988 |
|---|
| 10 | EE | Victor Vianu,
Gottfried Vossen:
Conceptual Level Concurrency Control of Relational Update Transactions.
ICDT 1988: 353-367 |
| 9 | EE | Volkert Brosda,
Gottfried Vossen:
Update and Retrieval in a Relational Database Through a Universal Schema Interface.
ACM Trans. Database Syst. 13(4): 449-485 (1988) |
| 8 | | Gottfried Vossen:
A New Characterization of FD Implication with an Application to Update Anomalies.
Inf. Process. Lett. 29(3): 131-135 (1988) |
| 7 | EE | Gottfried Vossen,
Jim Yacabucci:
An Extension of the Database Language SQL to Capture More Relational Concepts.
SIGMOD Record 17(4): 70-78 (1988) |
| 1986 |
|---|
| 6 | | Gottfried Vossen,
Anke Heinen:
Algorithmischer Schema-Entwurf als integrierter Bestandteil eines Universalrelationen-Datenbanksystems.
Angewandte Informatik 28(1): 15-19 (1986) |
| 1985 |
|---|
| 5 | EE | Volkert Brosda,
Gottfried Vossen:
Updating a Relational Database through a Universal Schema Interface.
PODS 1985: 66-75 |
| 4 | EE | Gottfried Vossen,
Volkert Brosda:
A High-Level User Interface for Update and Retrieval in Relational Databases - Language Aspects.
SIGMOD Conference 1985: 343-353 |
| 3 | | Gottfried Vossen,
Volkert Brosda:
Die Einrelationen-Benutzerschnittstelle des MEMODAX-Datenbank-Systems.
Angewandte Informatik 27(12): 534-540 (1985) |
| 1984 |
|---|
| 2 | | U. Kämper,
Gottfried Vossen:
Das relationale Datenbanksystem MEMODAX - zum aktuellen Stand der Entwicklung.
Angewandte Informatik 26(4): 152-163 (1984) |
| 1982 |
|---|
| 1 | | Gottfried Vossen:
Über eine effiziente Implementierung des Synthese-Verfahrens zum Design relationaler Datenbank-Schemata.
Angewandte Informatik 24(10): 493-503 (1982) |
