TY  - BOOK
AU  - Arnold A Ed.
ED  - Colloquium on trees in algebra and programming (CAAP'90) (15 : 1990 : Denmark)
TI  - Proceeding on Trees in algebra and programming (CAAP'90)
T2  - Lecture notes in computer science; 431
U1  - D65,8(B)92, N0 
PY  - 1990///
CY  - Berlin
PB  - Springer Verlg      
KW  - Computer programming
ER  -