@article{DAN_1991_320_5_a8,
     author = {G. A. Arutyunyan},
     title = {Formation of spectral lines in the medium of finite optical thickness with},
     journal = {Doklady Akademii Nauk},
     pages = {1073--1077},
     year = {1991},
     volume = {320},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_5_a8/}
}