@article{MASLO_1992__42_1_a4,
     author = {Rudolf, Boris},
     title = {Existence theorems for nonlinear operator equation $Lu+Nu=f$ and some properties of the set of its solutions},
     journal = {Mathematica slovaca},
     pages = {55--63},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1992},
     mrnumber = {1159491},
     zbl = {0744.34025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1992__42_1_a4/}
}