↑ Borman, Lorraine; Dillaman, Donald (1968), TRIAL: An Information Retrieval System for Creating, Maintaining, Indexing, and Retrieving from Files of Textual Information (PDF), Vogelback Computing Center, Northwestern University . ↑ Borman, Lorraine; Hay, Richard (1974), Data Resources for the Social Sciences, Vogelback Computing Center, Northwestern University . ↑ Mittman, Benjamin; Borman, Lorraine (1975), Personalized Data Base Systems, Melville Pub.