https://users.cg.tuwien.ac.at/zsolnai/wp/wp-content/uploads/2014/02/universe_icon.gif10495zsolnaihttps://users.cg.tuwien.ac.at/zsolnai/wp/wp-content/uploads/2018/05/web_logo_2018-03.pngzsolnai2014-03-02 17:51:512014-03-02 17:51:51Ramsey theory and the Happy Ending problem