Michaela, Marth-Busch, and Bogner Franz X. 2020. “Technology Interest of Secondary School Students at Five Testing Points over One Complete School Year After Participating at a Student-Centered Learning Program about Bionics”. International Journal of Learning, Teaching and Educational Research 19 (2):94-111. https://ijlter.myres.net/index.php/ijlter/article/view/436.