%0 Journal Article %A Jingyal Pak %T On the fiber-preserving maps %J Colloquium Mathematicum %D 1977 %P 223-227 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-38-2-223-227/ %R 10.4064/cm-38-2-223-227 %G en %F 10_4064_cm_38_2_223_227