@article{DAN_1975_225_2_a0,
     author = {N. S. Bakhvalov},
     title = {Averaging of nonlinear partial differential equations with rapidly oscillating coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {249--252},
     year = {1975},
     volume = {225},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_2_a0/}
}