@article{DAN_1991_320_1_a12,
     author = {A. L. Gulbudagyan},
     title = {On the evolution of spiral galaxies},
     journal = {Doklady Akademii Nauk},
     pages = {67--69},
     publisher = {mathdoc},
     volume = {320},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_1_a12/}
}