VETTERICK, Jonas; GARBE, Martin; DÄHN, Andreas; CAP, Clemens H. Classroom Response Systems in the Wild: Technical and Non-Technical Observations. International Journal of Interactive Mobile Technologies (iJIM), [S. l.], v. 8, n. 1, p. pp. 21–25, 2014. DOI: 10.3991/ijim.v8i1.3454. Disponível em: https://online-journals.org/index.php/i-jim/article/view/3454. Acesso em: 2 may. 2024.