@article{PORMA_1995__52_2_47344,
     author = {Henrard, M.},
     title = {Topological degree and existence of an infinite number of solutions of a boundary value problem for a singular equation. {(Degr\'e} topologique et existence d'une infinit\'e de solutions d'un probl\`eme aux limites pour une \'equation singuli\`ere.)},
     journal = {Portugaliae mathematica},
     pages = {153--165},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {1995},
     zbl = {0831.34026},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_2_47344/}
}