ERB, J.; GEISS, M. Educational Devices: Debates and Endeavours within the Swiss Teachers’ Association SLV, 1950–1980. Nordic Journal of Educational History, [S. l.], v. 10, n. 1, p. 3–26, 2023. DOI: 10.36368/njedh.v10i1.308. Disponível em: https://journals.ub.umu.se/index.php/njedh/article/view/308. Acesso em: 24 oct. 2024.