Bulatov, A., & Jeavons, P. (2000). Tractable constraints closed under a binary operation. Oxford University Computing Laboratory.
Dyfyniad Arddull ChicagoBulatov, A., and P. Jeavons. Tractable Constraints Closed Under a Binary Operation. Oxford University Computing Laboratory, 2000.
Dyfyniad MLABulatov, A., and P. Jeavons. Tractable Constraints Closed Under a Binary Operation. Oxford University Computing Laboratory, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.