%0 Journal Article %A C. Rényi %T On some questions concerning lacunary power series of two variables %J Colloquium Mathematicum %D 1963 %P 165-171 %V 11 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-11-2-165-171/ %R 10.4064/cm-11-2-165-171 %G en %F 10_4064_cm_11_2_165_171