TY  - BOOK
AU  - Astesiano E Ed.
AU  -  Bohm C Ed.
ED  - Colloquium on trees in algebra and programming (1981 : Genoa)
TI  - Proceeding on trees in algebra and programming
T2  - Lecture notes in Computer science; 112
U1  - B20bD65,8(B)92p1,N81, M1 
PY  - 1981///
CY  - Berlin
PB  - Springer-verlag         
ER  -