TY  - BOOK
AU  - Salomaa,Arto
TI  - Automata,Languages and Programming.Fourth Colloquium, University of Turku,Finland,July 18-22,1977
SN  - 130
PY  - 1977///
CY  - Berlin
PB  - Springer
N1  - ISSN 130 ; 52
ER  -