00309nam a2200121Ia 4500020001500000082002100015100002200036245004300058260004800101300002800149500000500177700000500182  a0521825830  a519.91bAp655.PC  aApt, Krzysztof R.  aPrinciples of constraint programmingb  aCambridgebCambridge University Pressc2003  axii, 407p. Bibl. Index.  a  a