TY  - BOOK
AU  - Colloquium on Trees in Algebra & Programming. Copenhagen 1990
TI  - CAAP'90 /ed. by A. Arnold
T2  - Lecturer notes in computer science
SN  - 3540525904
U1  - 005.13 
PY  - 1990///
CY  - Berlin
PB  - SV
ER  -