/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: andidinu https://cdn.slidesharecdn.com/profile-photo-andidinu-48x48.jpg?cb=1523631332 :) . "Ami igazán lényeges, az a szemnek láthatatlan."