@article{PMB_1988___1_A1_0,
     author = {Massy, Richard},
     title = {R\'eduction de d\'ecompositions num\'eriques de classes de cohomologie},
     journal = {Publications math\'ematiques de la Facult\'e des sciences de Besan\c{c}on. Th\'eorie des nombres},
     eid = {1},
     pages = {1--25},
     publisher = {Universit\'e de Besan\c{c}on},
     number = {1},
     year = {1988},
     doi = {10.5802/pmb.a-50},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/pmb.a-50/}
}