by Wilbur S.R, Stine P.A
Published in Extension Circular - Oregon State University (1983)

by Hu, P., Wilbur, S.R.
Published in [1992] Proceedings. The Sixteenth Annual International Computer Software and Applications Conference (1992)

by Casey, T.J., Wilbur, S.R.
Published in [Proceedings 1988] Fourth Aerospace Computer Security Applications (1988)