%0 Journal Article %T Barbier type theorems for plane curves %A Stanis£¿aw G¨®£¿d£¿ %J Le Matematiche %D 1990 %I University of Catania %X A C1 class of simple closed and convex plane curves which contains all ovals is considered. This class is divided into subclasses for which greatest lower bound of number of Barbier sets are determined. %U http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/676