%0 Journal Article %A S. Stepanov %T Elementary method in the theory of congruences for a prime modulus %J Acta Arithmetica %D 1970 %P 231-247 %V 17 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-17-3-231-247/ %R 10.4064/aa-17-3-231-247 %G en %F 10_4064_aa_17_3_231_247