Frank Liebenthalhttps: //en.wikipedia.org/wiki/Carl_Schuster https: //en.wikipedia.org/wiki/Walter_Liebenthal https: //www.science.org/doi/10.1126/science.114.2972.636.b Liebenthal, Frank. "Volatile Silica Affecting Plant Ash Analyses." Science, vol. 114, no. 2972, 951, pp. 636-37. JSTOR, http: //www.jstor.org/stable/1679752. Accessed 5 Apr. 2024. Read More Read Less