@article{10_21136_CMJ_1991_102462,
     author = {Zaj{\'\i}\v{c}ek, Lud\v{e}k},
     title = {Smallness of sets of nondifferentiability of convex functions in non-separable {Banach} spaces},
     journal = {Czechoslovak Mathematical Journal},
     pages = {288--296},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1991},
     doi = {10.21136/CMJ.1991.102462},
     mrnumber = {1105445},
     zbl = {0768.58005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102462/}
}