Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_2004_40_1_a8, author = {V. V. Kulyaba and O. M. Penkin}, title = {Strong {Stratified} {Sets} and the {Friedrichs} {Inequality}}, journal = {Differencialʹnye uravneni\^a}, pages = {69--76}, publisher = {mathdoc}, volume = {40}, number = {1}, year = {2004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2004_40_1_a8/} }
V. V. Kulyaba; O. M. Penkin. Strong Stratified Sets and the Friedrichs Inequality. Differencialʹnye uravneniâ, Tome 40 (2004) no. 1, pp. 69-76. http://geodesic.mathdoc.fr/item/DE_2004_40_1_a8/