@article{10_21136_CMJ_1981_101779,
     author = {Cesari, Lamberto and Engl, Heinz W.},
     title = {Existence and uniqueness of solutions for nonlinear alternative problems in a {Banach} space},
     journal = {Czechoslovak Mathematical Journal},
     pages = {670--678},
     publisher = {mathdoc},
     volume = {31},
     number = {4},
     year = {1981},
     doi = {10.21136/CMJ.1981.101779},
     mrnumber = {631608},
     zbl = {0499.34040},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1981.101779/}
}