@misc{RO_1972__6_2_104_0,
     title = {Addendum},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {104--104},
     year = {1972},
     publisher = {EDP-Sciences},
     volume = {6},
     number = {V2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RO_1972__6_2_104_0/}
}