Some characteristics of sorting computing systems using random access storage devices. - George U. Hubbard (Commun. ACM, 1963)

Automating Logical File Design. - George U. Hubbard; Norman Raver (VLDB, 1975)

Automated Logical Data Base Design: Concepts and Applications. - Norman Raver; George U. Hubbard (IBM Syst. J., 1977)

A Technique for Automated Logical Database Design. - George U. Hubbard (Data Base Design Techniques I, 1978)

Compter-Assisted Hierarchical Database Design. - George U. Hubbard (Principles of Database Design (I), 1985)