%0 Journal Article %A W. Narkiewicz %T On natural numbers having unique factorization in a quadratic number field, II %J Acta Arithmetica %D 1967 %P 123-129 %V 13 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-13-2-123-129/ %R 10.4064/aa-13-2-123-129 %G en %F 10_4064_aa_13_2_123_129