@article{10_4153_CMB_1980_020_9,
     author = {Bragard, L. and Vangeld\`ere, J.},
     title = {Adjonction ou {Suppression} {D'objectifs} en {Programmation} \`a {Objectifs} {Lin\'eaires} {Multiples}},
     journal = {Canadian mathematical bulletin},
     pages = {143--153},
     year = {1980},
     volume = {23},
     number = {2},
     doi = {10.4153/CMB-1980-020-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1980-020-9/}
}