Stefanel, Alberto, Marisa Michelini, Renzo Ragazzon, and Lorenzo Santi. 2003. “Quantum Physics in Secondary School”. Gjornâl Furlan Des Siencis - Friulian Journal of Science 2 (3). Udine, Italy:21-30. https://www.gfs-fjs.net/index.php/gsf/article/view/33.