|  |  | 
| 1999 | ||
|---|---|---|
| 2 | EE | John Linn, Magnus Nyström: Attribute Certification: An Enabling Technology for Delegation and Role-Based Controls in Distributed Environments. ACM Workshop on Role-Based Access Control 1999: 121-130 | 
| 1 | EE | Magnus Nyström, John G. Brainard: An X.509-Compatible Syntax for Compact Certificates. CQRE 1999: 76-93 | 
| 1 | John G. Brainard | [1] | 
| 2 | John Linn | [2] |