TY  - BOOK
AU  - Engelfriet,Joost
TI  - Simple program schemes and formal languages
SN  - 0387069534
PY  - 1974///
CY  - Berlin: 
PB  - Springer-Verlag, 
KW  - Formal languages
KW  - Programming (Electronic computers)
N1  - Bibliography: pages 248-254
ER  -