Inapproximability and a polynomially solvable special case of a network improvement problem
| Year of publication: |
2004
|
|---|---|
| Authors: | Zhang, J. Z. ; Yang, X. G. ; Cai, M. C. |
| Published in: |
European Journal of Operational Research. - Elsevier, ISSN 0377-2217. - Vol. 155.2004, 1, p. 251-257
|
| Publisher: |
Elsevier |