Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1967_91_a6, author = {V. P. Mikhailov}, title = {The first boundary value problem for quasi-elliptic and quasi-parabolic equations}, journal = {Informatics and Automation}, pages = {81--99}, publisher = {mathdoc}, volume = {91}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_91_a6/} }
V. P. Mikhailov. The first boundary value problem for quasi-elliptic and quasi-parabolic equations. Informatics and Automation, Boundary problems for differential equations, Tome 91 (1967), pp. 81-99. http://geodesic.mathdoc.fr/item/TRSPY_1967_91_a6/