WENDT, Tom. Paul Arnold Fryxell (1927-2011). Acta Botanica Mexicana, [S. l.], n. 98, p. 1–4, 2014. DOI: 10.21829/abm98.2012.5. Disponível em: https://abm.ojs.inecol.mx/index.php/abm/article/view/5. Acesso em: 12 ene. 2025.