%0 Journal Article
%A Michalska, M.
%T A sufficient condition for the convexity of the area of an isoptic curve of an oval
%J Rendiconti del Seminario Matematico della Università di Padova
%D 2003
%P 161-169
%V 110
%I Seminario Matematico of the University of Padua
%U http://www.numdam.org/item/RSMUP_2003__110__161_0/
%G en
%F RSMUP_2003__110__161_0