@article{RO_1988__22_1_33_0,
     author = {Eiselt, H. A. and Laporte, G.},
     title = {Trading areas of facilities with different sizes},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {33--44},
     publisher = {EDP-Sciences},
     volume = {22},
     number = {1},
     year = {1988},
     mrnumber = {943105},
     zbl = {0637.90024},
     language = {en},
     url = {http://archive.numdam.org/item/RO_1988__22_1_33_0/}
}