1976 | ||
---|---|---|
2 | Claude Deheneffe, Henri Hennebert: NUL: A Navigational User's Language for a Network Structured Data Base. SIGMOD Conference 1976: 135-142 | |
1974 | ||
1 | Claude Deheneffe, Henri Hennebert, W. Paulus: Relational Model for a Data Base. IFIP Congress 1974: 1022-1025 |
1 | Claude Deheneffe | [1] [2] |
2 | W. Paulus | [1] |