@article{DAN_1980_250_5_a6,
     author = {G. M. Lyan},
     title = {On {Teichm\"uller} space and {Poincar\'es} $\Theta$-operator},
     journal = {Doklady Akademii Nauk},
     pages = {1053--1056},
     publisher = {mathdoc},
     volume = {250},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a6/}
}