1. Berry, Daniel M. Introduction to Oregano.SIGPLAN Notices, 6, 2 (February 1971) 171-190.
2. Berry, Daniel M. Block structure: Retention or deletion. InProceedings of the Third Annual ACM Symposium on Theory of Computing (1972) 86?100.
3. Chandra, Ashok K.On the Properties and Applications of Program Schemas. PhD thesis, Computer Science Department, Stanford University (1973). Also appears as Report No. CS-336, AI-188 (February 1973).
4. Church, Alonzo.The Calculi of Lambda-Conversion. Annals of Mathematics Studies. Princeton University Press, Princeton, New Jersey (1941).
5. Cole, Steven N. Pushdown store machines and real-time computation. InProceedings of the [First Annual] ACM Symposium on Theory of Computing (1969) 233?245.