@article{1195524881,
author = {Kasuga, Takashi},
title = {On Sobolev-Friedrichs' generalisation of derivatives},
journal = {Proc. Japan Acad.},
volume = {33},
number = {10},
year = {1957},
pages = { 596-599},
language = {en},
url = {http://dml.mathdoc.fr/item/1195524881}
}
Kasuga, Takashi. On Sobolev-Friedrichs' generalisation of derivatives. Proc. Japan Acad., Tome 33 (1957) no. 10, pp. 596-599. http://gdmltest.u-ga.fr/item/1195524881/