text: * F. Hansgirg, "Thermal Reduction of Magnesium Compounds", Pt. 1, The Iron Age, Vol. 152, No. 21, pp.52–63, November 18, 1943.
  *Fritz Hansgirg, "Koreas Industrial Development", originally appeared in Korea Economic Digest' (April 1945). 
  * Production of magnesium during carbothermal reduction of magnesium oxide by differential condensation of magnesium and alkali vapors