AKSELA, M.; HIRVONEN, P. E.; HÄSTÖ, P. Letter from the Editors. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 3, n. 6, 2015. DOI: 10.31129/lumat.v3i6.990. Disponível em: https://journals.helsinki.fi/lumat/article/view/990. Acesso em: 23 may. 2024.