TY  - BOOK
AU  - Apt,Krzysztof R.(ed.) [et..al]
TI  - New trends in constraints
T2  - Lecture in artificial intelligence; No 1865
SN  - 3540678859
U1  - 006.3 LEC 
PY  - 1999///
CY  - Berlin
PB  - Springer
N1  - Includes bibliographical references
ER  -