@article{GDZPPN002355841,
title = {Proof of the quadratic reciprocity law in primitive recursive arithmetic.},
journal = {Mathematica Scandinavica},
volume = {44},
year = {1979},
pages = {177-197},
zbl = {0433.03024},
url = {http://dml.mathdoc.fr/item/GDZPPN002355841}
}
Ryan, W.J. Proof of the quadratic reciprocity law in primitive recursive arithmetic.. Mathematica Scandinavica, Tome 44 (1979) pp. 177-197. http://gdmltest.u-ga.fr/item/GDZPPN002355841/