Andries P. J. van der Walt

2008
13	EE	Frank Drewes, Christine du Toit, Sigrid Ewert, Brink van der Merwe, Andries P. J. van der Walt: Bag Context Tree Grammars. Fundam. Inform. 86(4): 459-480 (2008)
2006
12	EE	Frank Drewes, Christine du Toit, Sigrid Ewert, Brink van der Merwe, Andries P. J. van der Walt: Bag Context Tree Grammars. Developments in Language Theory 2006: 226-237
2005
11		Frank Drewes, Christine du Toit, Sigrid Ewert, Johanna Högberg, Brink van der Merwe, Andries P. J. van der Walt: Random context tree grammars and tree transducers. South African Computer Journal 34: 11-25 (2005)
2003
10		Sigrid Ewert, Andries P. J. van der Walt: The Power and Limitations of Random Context. Grammars and Automata for String Processing 2003: 33-44
9	EE	Andries P. J. van der Walt, Sigrid Ewert: A property of random context picture grammars. Theor. Comput. Sci. 1-3(301): 313-320 (2003)
2002
8	EE	Sigrid Ewert, Andries P. J. van der Walt: A pumping lemma for random permitting context languages. Theor. Comput. Sci. 270(1-2): 959-967 (2002)
2000
7	EE	Andries P. J. van der Walt, Sigrid Ewert: A shrinking lemma for random forbidding context languages. Theor. Comput. Sci. 237(1-2): 149-158 (2000)
1999
6		Sigrid Ewert, Andries P. J. van der Walt: Generating Pictures Using Random Permitting Context. IJPRAI 13(3): 339-355 (1999)
5		Sigrid Ewert, Andries P. J. van der Walt: A Hierarchy Result for Random Forbidding Context Picture Grammars. IJPRAI 13(7): 997-1008 (1999)
4	EE	Sigrid Ewert, Andries P. J. van der Walt: Shrink Indecomposable Fractals. J. UCS 5(9): 521-531 (1999)
1998
3		Sigrid Ewert, Andries P. J. van der Walt: Generating Pictures Using Random Forbidding Context. IJPRAI 12(7): 939-950 (1998)
1976
2		Andries P. J. van der Walt: Locally Linear Families of Languages Information and Control 32(1): 27-32 (1976)
1971
1		Andries P. J. van der Walt: Random Context Languages. IFIP Congress (1) 1971: 66-68

Coauthor Index

1	Frank Drewes	[11] [12] [13]
2	Sigrid Ewert	[3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]
3	Johanna Högberg	[11]
4	Brink van der Merwe	[11] [12] [13]
5	Christine du Toit	[11] [12] [13]