MIKKONEN, T. Industriminnes-seminarium i Tammerfors. Tekniikan Waiheita, [S. l.], v. 17, n. 3, p. 52–55, 1999. Disponível em: https://journal.fi/tekniikanwaiheita/article/view/154335. Acesso em: 25 joulu. 2024.