@article{RO_1979__13_2_107_0,
     author = {Lerman, I. C.},
     title = {Les pr\'esentations factorielles de la classification. {I}},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {107--128},
     publisher = {EDP-Sciences},
     volume = {13},
     number = {2},
     year = {1979},
     mrnumber = {535201},
     zbl = {0408.62050},
     language = {fr},
     url = {http://www.numdam.org/item/RO_1979__13_2_107_0/}
}