@article{IVM_1987_5_a1,
     author = {V. N. Aref'ev},
     title = {On the smoothness of the solutions of second-order parabolic equations with discontinuous coefficients},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {11--19},
     publisher = {mathdoc},
     number = {5},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1987_5_a1/}
}