. . "Mikroform" . "[Mikrofiche-ausg.]." . "1976" . "634857343" . . . "The complexity of combinatorial optimization problems" . "en" . . . "634857343" . . . "1976" . . "Papadimitriou" . "Christos H." . "Christos H. Papadimitriou" . . . . "2018-03-11" . .