%0 Journal Article
%A Martini, H.
%A Mozgawa, W.
%T An integral formula related to inner isoptics
%J Rendiconti del Seminario Matematico della Università di Padova
%D 2011
%P 39-50
%V 125
%I Seminario Matematico of the University of Padua
%U http://www.numdam.org/item/RSMUP_2011__125__39_0/
%G en
%F RSMUP_2011__125__39_0