@article{DAN_1976_229_4_a4,
     author = {V. V. Kucherenko},
     title = {Parametrix for equations with degenerate symbol},
     journal = {Doklady Akademii Nauk},
     pages = {797--800},
     publisher = {mathdoc},
     volume = {229},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_229_4_a4/}
}