@article{SM_1983_45_1_a6,
     author = {V. G. Krotov},
     title = {On differentiability of functions in $L^p$, $0<p<1$},
     journal = {Sbornik. Mathematics},
     pages = {101--119},
     publisher = {mathdoc},
     volume = {45},
     number = {1},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1983_45_1_a6/}
}