Löffler, Gerd Reinhold. “Carl Auer Von Welsbach (1858-1929) - A Famous Austrian Chemist Whose Services Have Been Forgotten for Modern Physics”. Substantia 3, no. 2 (December 16, 2019): 91 - 107. Accessed May 17, 2022. https://riviste.fupress.net/index.php/subs/article/view/404.