1. SCIP;Achterberg;Math Program Comput,2009
2. Optimal shift coloring of trees;Andreatta;Oper Res Lett,2014
3. Branch-and-price;Barnhart;Oper Res,1998
4. Optimal domination in graphs;Cockayne;IEEE Trans Circuits Syst,1975
5. De Giovanni L. Location partitioning instances. 〈http://www.math.unipd.it~luigi/LPP/LocationPartitioningInstances.zip〉; 2014 [Retrieved: July 25th, 2014].