@article{10_21136_CMJ_1974_101280,
     author = {Sou\v{c}ek, Ji\v{r}{\'\i} and Sou\v{c}ek, Vladim{\'\i}r},
     title = {On the spectrum of a nonlinear operator},
     journal = {Czechoslovak Mathematical Journal},
     pages = {614--663},
     publisher = {mathdoc},
     volume = {24},
     number = {4},
     year = {1974},
     doi = {10.21136/CMJ.1974.101280},
     mrnumber = {0400299},
     zbl = {0329.47023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1974.101280/}
}