Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1986_39_2_a6, author = {S. P. Ponomarev}, title = {Functions with a $\mathscr D_*$-integrable symmetric derivative}, journal = {Matemati\v{c}eskie zametki}, pages = {221--227}, publisher = {mathdoc}, volume = {39}, number = {2}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1986_39_2_a6/} }
S. P. Ponomarev. Functions with a $\mathscr D_*$-integrable symmetric derivative. Matematičeskie zametki, Tome 39 (1986) no. 2, pp. 221-227. http://geodesic.mathdoc.fr/item/MZM_1986_39_2_a6/