Hazards in Asynchronous Sequential Circuits. - William S. Meisel; R. Sohrab Kashef (IEEE Trans. Computers, 1969)

Augmented Parity Check Codes for Encoding of Asynchronous Sequential Machines. - R. Sohrab Kashef; Robert B. McGhee (IEEE Trans. Computers, 1973)

A Universal Four-State Cellular Computer. - Farhad Nourai; R. Sohrab Kashef (IEEE Trans. Computers, 1975)