@article{1200692683, author = {Nakai, Yoshikazu}, title = {High order derivations. I}, journal = {Osaka J. Math.}, volume = {7}, number = {1}, year = {1970}, pages = { 1-27}, language = {en}, url = {http://dml.mathdoc.fr/item/1200692683} }
Nakai, Yoshikazu. High order derivations. I. Osaka J. Math., Tome 7 (1970) no. 1, pp. 1-27. http://gdmltest.u-ga.fr/item/1200692683/