van der Poel, W. L. SERA, A Simulated Language for Purposes of Explaining Compiler Construction. pp117-131

Information Processing Machines: Proceedings of th (1965) Information Processing Machines: Proceedings of the Symposium held in Prague on September 7th-9th, 1964. Czechislovak Academy of Sciences (Prague) and Iliffe Books, Ltd. (London) 1965  

Languages mentioned SERA {1964} Zebra VM language