Lei, Ting L.; Church, Richard L. - In: International Regional Science Review 37 (2014) 2, pp. 194-224
The vector assignment p-median problem (VAPMP) and the ordered p-median problem (OMP) are important extensions of the classic p-median problem. The VAPMP extends the p-median problem by allowing assignment of a demand to multiple facilities, and a wide variety of multi-assignment and backup...