@article{DAN_1977_237_1_a8,
     author = {S. A. Tersenov},
     title = {On some properties of the solutions of an equation of elliptic type on surfaces of degeneracy},
     journal = {Doklady Akademii Nauk},
     pages = {39--40},
     publisher = {mathdoc},
     volume = {237},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_237_1_a8/}
}