@article{MM_1990_2_4_a11,
     author = {P. A. Krutitskii},
     title = {On oblique derivative problem for a~plane with sections along the straight line and relating problems},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {143--154},
     publisher = {mathdoc},
     volume = {2},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1990_2_4_a11/}
}