@article{IM2_1986_27_1_a1,
     author = {V. A. Golubeva},
     title = {On systems with regular singularities, and their solutions},
     journal = {Izvestiya. Mathematics },
     pages = {27--38},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1986_27_1_a1/}
}