@article{DAN_1987_293_3_a14,
     author = {M. A. Sadovskii and S. K. Daragan and D. V. Dolgopolov and N. V. Kondorskaya},
     title = {On a method of determination
},
     journal = {Doklady Akademii Nauk},
     pages = {575--578},
     publisher = {mathdoc},
     volume = {293},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_293_3_a14/}
}