@article{IM2_1982_19_1_a2,
     author = {V. V. Zhikov and M. M. Sirazhudinov},
     title = {On $G$-compactness of a~class of nondivergence elliptic operators of second order},
     journal = {Izvestiya. Mathematics},
     pages = {27--40},
     year = {1982},
     volume = {19},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1982_19_1_a2/}
}