@article{CMJ_1998__48_4_a1,
     author = {Matou\v{s}kov\'a, Eva and Zaj{\'\i}\v{c}ek, Lud\v{e}k},
     title = {Second order differentiability and {Lipschitz} smooth points of convex functionals},
     journal = {Czechoslovak Mathematical Journal},
     pages = {617--640},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {1998},
     mrnumber = {1658221},
     zbl = {0956.58002},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_4_a1/}
}