%0 Journal Article %A Andrzej Schinzel %T On two theorems of Gelfond and some of their applications %J Acta Arithmetica %D 1967 %P 177-236 %V 13 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-13-2-177-236/ %R 10.4064/aa-13-2-177-236 %G en %F 10_4064_aa_13_2_177_236