Ingals, Daniel H.H., "The Smalltalk-76 Programming System: Design and Implementation" pp9-16

[POPL 1978] (1978) [ACM SIGACT-SIGPLAN] Proceedings of the 5th ACM SIGACT-SIGPLAN symposium on Principles of programming languages 1978 , Tucson, Arizona  

Languages mentioned Smalltalk {1971}