1. Viruses of Prokaryotes;Ackermann,1987
2. Identification of Bacillus species;Berkeley,1984
3. Genus Bacillus Cohn 1872, 174;Claus,1986
4. Morphology of sporulation;Fitz-James,1969
5. Examination of 20 Bacillus species by crossed immunoelectrophoresis under taxonomic aspects;Hartung;Zbl. Bakt. Hyg. A,1987