TY  - BOOK
AU  - Arnold A
ED  - Colloquium on Trees in Algebra and Programming( 15th : 1990 : Copenhagen )
ED  - Colloquium on Trees in Algebra and Programming 15th
TI  - CAAP : proceedings
U1  - 5.10151 
PY  - 1990///
CY  - Berlin
PB  - Springer Verlag
KW  - Computer programming
ER  -