@article{PSMIR_1972___3_A2_0,
     author = {Chein, Michel and Riviere, Michel},
     title = {Indice de $P$-recouvrement d{\textquoteright}un graphe},
     journal = {Publications des s\'eminaires de math\'ematiques et informatique de Rennes},
     note = {talk:2},
     pages = {1--70},
     publisher = {D\'epartement de Math\'ematiques et Informatique, Universit\'e de Rennes},
     number = {3},
     year = {1972},
     language = {fr},
     url = {http://www.numdam.org/item/PSMIR_1972___3_A2_0/}
}