共 10 条
[1]
Beardwood J, 1959, P CAMBRIDGE PHILOS S, V55, P299, DOI [DOI 10.1017/S0305004100034095, 10.1017/S0305004100034095]
[3]
Garey Michael R., 1979, COMPUTERS INTRACTABI
[4]
GAREY MR, 1976, 8TH P ANN ACM S THEO, P10
[5]
HALTON JH, 1978, 335 U WISC COMP SCI
[6]
HELD M, 1962, SIAM J, V10, P196
[7]
Karp R. M., 1977, Mathematics of Operations Research, V2, P209, DOI 10.1287/moor.2.3.209
[8]
KROLAK PD, 1970, 7TH P INT S MATH PRO
[9]
LIN S, 1973, J OPER RES, V21, P498
[10]
Papadimitriou C. H., 1977, Theoretical Computer Science, V4, P237, DOI 10.1016/0304-3975(77)90012-3