@article{ZNSL_1998_254_a2,
     author = {E. P. Golubeva},
     title = {On exceptional integers for binary quadratic forms},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {56--64},
     publisher = {mathdoc},
     volume = {254},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1998_254_a2/}
}