Testing of Support Tools for Plagiarism Detection. - Tomás Foltýnek; Dita Henek Dlabolová; Alla Anohina-Naumeca; Salim Razi; Július Kravjar; Laima Kamzola; Jean Guerrero-Dib; Özgür Çelik; Debora Weber-Wulff (CoRR, 2020)