Voir la notice de l'article provenant de la source Math-Net.Ru
[1] Vasileva A. B., Butuzov V. F., Asimptoticheskie metody v teorii singulyarnykh vozmuschenii, Vyssh. shkola, M., 1990 | MR
[2] Nefëdov N. N., “Metod differentsialnykh neravenstv dlya nekotorykh tipov singulyarno vozmuschennykh zadach v chastnykh proizvodnykh”, Differents. ur-niya, 31:7 (1995), 1132–1139
[3] Vasileva A. B., “Ob ustoichivosti kontrastnykh struktur”, Matem. modelirovanie, 3:4 (1991), 114–123 | MR
[4] Vasileva A. B., Nikitin A. G., “K voprosu ob ustoichivosti periodicheskikh kontrastnykh struktur v prostranstvenno dvumernom sluchae”, Differents. ur-niya, 32:10 (1996), 1355–1361 | MR
[5] Amann H., “On the existence of positive solutions of nonlinear elliptic boundary value problems”, Indiana Univ. Math. J., 21:2 (1971), 125–146 | DOI | MR
[6] Bers L., Dzhon F., Shekhter M., Uravneniya s chastnymi proizvodnymi, Mir, M., 1966 | MR | Zbl
[7] Gilbarg D., Trudinger N., Ellipticheskie differentsialnye uravneniya s chastnymi proizvodnymi vtorogo poryadka, Nauka, M., 1989 | MR | Zbl