@article{PIM_2001_N_S_69_83_a9,
     author = {Slavko Simi\'c},
     title = {On a {Theorem} of {M.} {Vuilleumier}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {78 },
     publisher = {mathdoc},
     volume = {_N_S_69},
     number = {83},
     year = {2001},
     zbl = {1003.26005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2001_N_S_69_83_a9/}
}