PAULUS, Aran. In Memoriam, H. Michael Widmer: Obituary. CHIMIA, [S. l.], v. 51, n. 10, p. 804, 1997. DOI: 10.2533/chimia.1997.804. Disponível em: https://www.chimia.ch/chimia/article/view/1997_804. Acesso em: 2 may. 2024.