%0 Journal Article %A W. Narkiewicz %T On natural numbers having unique factorization in a quadratic number field %J Acta Arithmetica %D 1966 %P 1-22 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-12-1-1-22/ %R 10.4064/aa-12-1-1-22 %G en %F 10_4064_aa_12_1_1_22