1. Nitrate reduction to nitrite, a possible source of nitrite for growth of nitrite-oxidizing bacteria;Belser;Applied and Environmental Microbiology,1977
2. Diversity in the ammonia-oxidizing nitrifier population of a soil;Belser;Applied and Environmental Microbiology,1978
3. Concrete Corrosion, Concrete Protection;Biczok,1972
4. Biologischinduzierte Korrosion von Naturstein — starker Befall mit Nitrifikanten;Bock;Bautenschutz und Bausanier,1987