@article{TRSPY_2012_278_a0,
     author = {Yu. A. Alkhutov and E. A. Khrenova},
     title = {Harnack inequality for a~class of second-order degenerate elliptic equations},
     journal = {Informatics and Automation},
     pages = {7--15},
     publisher = {mathdoc},
     volume = {278},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2012_278_a0/}
}