1. Dampfgehärtete Baustoffe, Bauverlag, Wiesbaden Berlin;Gundlach,1973
2. Chemical transformations during the manufacturing of autoclaved aerated concrete (AAC): cement, lime, gypsum and quartz sand become cellular concrete;Schober;ZKG Int.,2005
3. Porenbetonherstellung - ist-zustand und mögliche verbesserungen;Schober;BFT Int.,2007
4. Hydroxyl Ellestadite produced by hydrothermal reaction containing calcium sulphate;Takemoto,1969