An information Algebra. - Robert Bosak (ACM National Meeting, 1961)

An information algebra: phase 1 report - language structure group of the CODASYL development committee. - Robert Bosak; Richard F. Clippinger; Carey Dobbs; Roy Goldfinger; Renee B. Jasper; William Keating; George Kendrick; Jean E. Sammet (Commun. ACM, 1962)