Geodesic
On quadratic congruences
Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 23, Tome 357 (2008), pp. 195-200 
O. M. Fomenko. On quadratic congruences. Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 23, Tome 357 (2008), pp. 195-200. http://geodesic.mathdoc.fr/item/ZNSL_2008_357_a11/
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     author = {O. M. Fomenko},
     title = {On quadratic congruences},
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     year = {2008},
     volume = {357},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2008_357_a11/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

We prove that under suitable assumptions, the solutions $f$ of quadratic congruences $Q(f)\equiv0\,(\operatorname{mod}n)$, $n\le x$, with $(f/n)=\pm1$ distribute asymptotically equally as $x\to\infty$. Bibl. – 5 titles.

[1] O. M. Fomenko, “O raspredelenii kornei kvadratichnogo sravneniya”, Zap. nauchn. semin. LOMI, 183, Nauka, L., 1990, 155–164 | MR

[2] C. Hooley, “On the number of divisors of quadratic polynomials”, Acta Math., 110 (1963), 97–114 | DOI | MR | Zbl

[3] D. Ismoilov, “Summirovanie chisla reshenii kvadratichnogo sravneniya”, Dokl. AN Tadzh. SSR, 21:9 (1978), 10–13 | MR | Zbl

[4] K. Chandrasekharan, A. Good, “On the number of integral ideals in Galois extensions”, Monatsh. Math., 95 (1983), 99–109 | DOI | MR | Zbl

[5] A. Good, “Approximative Funktionalgleichungen und Mittelwertsätze für Dirichletreihen, die Spitzenformen assoziiert sind”, Comment. Math. Helv., 50 (1975), 327–361 | DOI | MR | Zbl