@article{IM_1991__106_1_143935,
     author = {Michel Boileau and Jean-Pierre Otal},
     title = {Scindements de {Hegaard} et groupe de hom\'eotopies des petites vari\'et\'es de {Seifert.}},
     journal = {Inventiones mathematicae},
     pages = {85--108},
     publisher = {mathdoc},
     volume = {106},
     number = {1},
     year = {1991},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__106_1_143935/}
}