@article{ZNSL_1990_183_a7,
     author = {O. M. Fomenko},
     title = {On the distribution of the roots of a quadratic congruence},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {155--165},
     publisher = {mathdoc},
     volume = {183},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1990_183_a7/}
}