Team dynamics and the undergraduate curriculum. - John C. Hansen; Elizabeth A. Hansen; Kenneth H. Derus (ACM SIGCSE Bull., 1978)

Logics of truth and disposition. - Kenneth H. Derus; John C. Hansen (SIGACT News, 1979)

Propositions with multiple dispositions and multiple truth values. - Kenneth H. Derus; John C. Hansen (SIGACT News, 1979)