Satoshi Hada
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
The recognizable sets of value trees (pseudoterms) are shown to be exactly projections of sets of derivation trees of (extended) context-free grammars. © 1968 Academic Press Inc.
Satoshi Hada
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Matthew A Grayson
Journal of Complexity
George Markowsky
J. Math. Anal. Appl.
David W. Jacobs, Daphna Weinshall, et al.
IEEE Transactions on Pattern Analysis and Machine Intelligence