Nicos Christofides. Large Scheduling Problems with Bivalent Costs. Comput. J., 16(3):262-264, 1973.
@article{Christofides73, title = {Large Scheduling Problems with Bivalent Costs}, author = {Nicos Christofides}, year = {1973}, researchr = {https://researchr.org/publication/Christofides73}, cites = {0}, citedby = {0}, journal = {Comput. J.}, volume = {16}, number = {3}, pages = {262-264}, }