@article{CMUC_1993__34_4_a2,
     author = {Fe\v{c}kan, Michal},
     title = {Multiple perturbed solutions near nondegenerate manifolds of solutions},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {635--643},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {1993},
     mrnumber = {1263793},
     zbl = {0795.58006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1993__34_4_a2/}
}