1. Experiences with the API-20A system in routine species identification of anaerobes;Essers;Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene Abt I Originale A,1977
2. Antibiotic susceptibility patterns as aids in classification and characterization of Gram-negative anaerobic bacteria;Finegold;Journal of Bacteriology,1967
3. Is the API 20 a system sufficient for routine species identification of anaerobes;Haralambie;Das Ärztliche Laboratorium,1977