@article{IM2_1976_10_4_a10,
     author = {M. I. Matiichuk},
     title = {The oblique derivative problem for parabolic equations with minimal smoothness and a~degeneracy},
     journal = {Izvestiya. Mathematics },
     pages = {845--859},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {1976},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1976_10_4_a10/}
}