@article{MMO_1971_25_a3,
     author = {G. I. \`Eskin},
     title = {Elliptic pseudodifferential operators with a~first order degeneracy in the space variables},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {83--118},
     publisher = {mathdoc},
     volume = {25},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1971_25_a3/}
}