\bib{1992/peralta} \yr 1992 \mr 93c:11115 \by Ren\'e Peralta \paper On the distribution of quadratic residues and nonresidues modulo a prime number \jour Mathematics of Computation \issn 0025--5718 \vol 58 \pages 433--440 \url http://links.jstor.org/sici?sici=0025-5718(199201)58:197<433:OTDOQR>2.0.CO;2-0 \endref