R. Seebauer, „Discussions on School Reform - a Long Way to the Unification of Schools for 10 to 14-Year-Olds“, REI, let. 2, št. 2/3, str. 77–88, avg. 2009, Pridobljeno: jul. 12, 2026. Dostopno na: https://journals.um.si/index.php/education/article/view/245