MARESCH, Günter. Smartphones and QR-codes in education - a QR-code learning path for Boolean operations. Teaching Mathematics and Computer Science, [S. l.], v. 13, n. 1, p. 111–120, 2015. DOI: 10.5485/TMCS.2015.0391. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14970. Acesso em: 27 sep. 2024.