%0 Journal Article %A Marek Rochowski %T Length-preserving deformations of closed plane curvesc %J Colloquium Mathematicum %D 1973 %P 231-246 %V 28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-28-2-231-246/ %R 10.4064/cm-28-2-231-246 %G en %F 10_4064_cm_28_2_231_246