@article{DAN_1979_247_1_a10,
     author = {N. N. Yanenko and E. V. Vorozhtsov},
     title = {On the theory of differential analyzers of contact discontinuities},
     journal = {Doklady Akademii Nauk},
     pages = {48--52},
     publisher = {mathdoc},
     volume = {247},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_247_1_a10/}
}