1. Sensitivity of E. coli strains from various animal species to chlortetracycline and furazolidone;Bartoš;Vet. Med. Praha,1968
2. Antibiotic susceptibility testing by a standardized single disk method;Bauer;Am. J. Clin. Path.,1966
3. Quality control testing with the disc antibiotic susceptibility test of Bauer-Kirby-Sherris-Turck;Blasevic;Am. J. Clin. Path.,1972
4. Investigations on the susceptibility of Escherichia coli strains to nitrofuran preparations with reference to acquiring immunity in vitro;Borkowska-Opacka;Bull. Vet. Inst. Pulawy,1971