• Thumbnail for Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State
    Biltz (Hannover chemist), Ludwig Binder (Dresden electrotechnician), Lothar Birckenbach (Clausthal chemist), Herbert Birtner (Marburg musicologist), Fritz...
    38 KB (3,707 words) - 03:34, 6 October 2024
  • Thumbnail for Thiocyanic acid
    and WHO staff. "Thiocyanic acid" safety card. European Commission Birckenbach, Lothar (1942). Forschungen und Fortschritte. 18: 232–3 {{cite journal}}:...
    7 KB (510 words) - 15:44, 31 July 2024
  • Thumbnail for Otto Hönigschmid
    United Kingdom: OUP/Royal Institution. p. 108. ISBN 9780191506437. Birckenbach, Lothar (1949). "Otto Hönigschmid 1878-1945". Chemische Berichte (in German)...
    9 KB (771 words) - 21:25, 23 May 2024
  • Health Bulletin, September 1920". Mocavo. Retrieved 9 January 2016. Birckenbach, Lothar (1949). "Otto Hönigschmid 1878–1945". Chemische Berichte (in German)...
    13 KB (1,165 words) - 11:43, 22 September 2024