1. Mark sensing for recording and analysis of sedimentological data;Alexander-Marrack,1971
2. Automatisch gewonnene Informationen aus geologischen Schichtenverzeichnissen und ihre Weiterverarbeitung;Barckhausen;Geol. Jb., Bd.,1973
3. Development of the Saskatchewan computerized well information system;Buller,1972
4. A lithologic data-recording form for a computer-based well-data system;Conley;Jour. Math. Geol.,1972
5. Particular requirements for the Dutch WIA Earth Science Information System;de Heer,1975