@article{ZAA_2000__19_3_48920,
     author = {O'Regan, D.},
     title = {A multiplicity fixed point theorem in {Fr\'echet} spaces.},
     journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
     pages = {853--862},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2000},
     zbl = {0970.47044},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZAA_2000__19_3_48920/}
}