Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1993_54_6_a7, author = {A. A. Solyanik}, title = {Bordering functions for differential bases}, journal = {Matemati\v{c}eskie zametki}, pages = {82--89}, publisher = {mathdoc}, volume = {54}, number = {6}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1993_54_6_a7/} }
A. A. Solyanik. Bordering functions for differential bases. Matematičeskie zametki, Tome 54 (1993) no. 6, pp. 82-89. http://geodesic.mathdoc.fr/item/MZM_1993_54_6_a7/