@article{FAA_1985_19_2_a17,
     author = {L. I. Sazonov},
     title = {Bisingular characteristic operators with discontinuous coefficients in the space $L_2(\mathbf R_2)$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {90--91},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1985_19_2_a17/}
}