@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/