%0 Journal Article %A Andrzej Schinzel %T On primitive prime factors of Lehmer numbers II %J Acta Arithmetica %D 1962 %P 251-257 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-8-2-251-257/ %R 10.4064/aa-8-2-251-257 %G en %F 10_4064_aa_8_2_251_257