A k-product uncapacitated facility location problem
2008 ◽
Vol 185
(2)
◽
pp. 552-562
◽
1998 ◽
Vol 5
(2)
◽
pp. 155-168
◽
1999 ◽
Vol 93
(2-3)
◽
pp. 149-156
◽
2019 ◽
Vol 135
◽
pp. 855-867
◽