Magnetic bubble computer systems. - Robert C. Minnick; Paul T. Bailey; Robert M. Sandfort; Warren L. Semon (AFIPS Fall Joint Computing Conference (2), 1972)

Cascade Realizations of Magnetic Bubble Logic Using a Small Set of Primitives. - Robert C. Minnick; Paul T. Bailey; Robert M. Sandfort; Warren L. Semon (IEEE Trans. Computers, 1975)