@article{bwmeta1.element.desklight-e2a817f5-b9d0-4c66-a52b-09992918041e,
author = {K. Szymiczek},
title = {On prime numbers p,q and r such that pq, pr, and qr are pseudoprimes},
journal = {Colloquium Mathematicae},
volume = {13},
year = {1964},
pages = {259-263},
zbl = {0127.01901},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-e2a817f5-b9d0-4c66-a52b-09992918041e}
}
K. Szymiczek. On prime numbers p,q and r such that pq, pr, and qr are pseudoprimes. Colloquium Mathematicae, Tome 13 (1964) pp. 259-263. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-e2a817f5-b9d0-4c66-a52b-09992918041e/