%0 Journal Article %A Feireisl, Eduard %T On the existence of free vibrations for a beam equation when the period is an irrational multiple of the length %J Applications of Mathematics %D 1988 %P 94-102 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1988.104291/ %R 10.21136/AM.1988.104291 %G en %F 10_21136_AM_1988_104291