@article{1206138584, author = {Sat\^o, Shizuka}, title = {Notes on derivations of higher order}, journal = {J. Sci. Hiroshima Univ. Ser. A-I Math.}, volume = {33}, number = {1}, year = {1969}, pages = { 41-46}, language = {en}, url = {http://dml.mathdoc.fr/item/1206138584} }
Satô, Shizuka. Notes on derivations of higher order. J. Sci. Hiroshima Univ. Ser. A-I Math., Tome 33 (1969) no. 1, pp. 41-46. http://gdmltest.u-ga.fr/item/1206138584/