@article{DAN_1981_258_2_a6,
     author = {L. I. Kamynin and B. N. Khimchenko},
     title = {On the anisotropic strict extremum principle for a second order elliptic-parabolic equation},
     journal = {Doklady Akademii Nauk},
     pages = {288--293},
     publisher = {mathdoc},
     volume = {258},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_258_2_a6/}
}