@article{02186434,
title = {On a congruence by J\'anos Bolyai, connected with pseudoprimes.},
journal = {Mathematica Pannonica},
volume = {15},
year = {2004},
pages = {283-288},
zbl = {1064.11002},
language = {en},
url = {http://dml.mathdoc.fr/item/02186434}
}
Kiss, Elemér; Sándor, József. On a congruence by János Bolyai, connected with pseudoprimes.. Mathematica Pannonica, Tome 15 (2004) pp. 283-288. http://gdmltest.u-ga.fr/item/02186434/