%0 Journal Article %A Andrzej Schinzel %T On the product of the conjugates outside the unit circle of an algebraic number %J Acta Arithmetica %D 1973 %P 385-399 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-24-4-385-399/ %R 10.4064/aa-24-4-385-399 %G en %F 10_4064_aa_24_4_385_399