läs online, Encyclopædia Britannica .[källa från Wikidata]
doi.org
dx.doi.org
Otto N. Witt (1911). ”Obituary notices: Friedrich Konrad Beilstein, 1838–1906; Emil Erlenmeyer, 1825–1909; Rudolph Fittig, 1835–1910; Hans Heinrich Landolt, 1831–1910; Nikolai Alexandrovitsch Menschutkin, 1842–1907; Sir Walter Palmer, Bart., 1858–1910”. J. Chem. Soc., Trans. 99: sid. 1646–1668. doi:10.1039/CT9119901646.
Leicester, Henry M. (1948). ”Mendeleev and the Russian Academy of Sciences”. Journal of Chemical Education 25 (8): sid. 439–444. doi:10.1021/ed025p439.