For citations:

Pachev U.M. ON THE DISTRIBUTION OF REDUCED INDEFINITE BINARY QUADRATIC FORMS WITH THE CONDITION OF FIRST COEFFICIENTS DIVISIBILITY IN RESIDUE CLASSES. Chebyshevskii Sbornik. 2013;14(2):139-150. (In Russ.) https://doi.org/10.22405/2226-8383-2013-14-2-139-150