Minimally Infeasible Set-Partitioning Problems with Balanced Constraints.

Michele Conforti Marco Di Summa Giacomo Zambelli Minimally Infeasible Set-Partitioning Problems with Balanced Constraints. 497-507 2007 32 Math. Oper. Res. 3 http://dx.doi.org/10.1287/moor.1070.0250 db/journals/mor/mor32.html#ConfortiSZ07