1. Brumfitt, W.: Bacteriological aspects of renal disease. In: Renal Disease (Hrsg. D. Black). Oxford 1972.
2. Emmerson, A. M., Keane, C., Reeves, D. S., Wise, R.: The incidence of ampicillin, cephalosporin and sulfonamide resistance amongst urinary tract pathogens. 9th Int. Congr. of Chemotherapy. London 1975.
3. Knothe, H., Sietzen, W. Harnwegserkrankungen. Bakteriologische und immunologische Probleme. Diagnostik 6 (1973) 449–451.
4. McGeachie, J. Quantitative bacteriology of urinary infection. Brit. J. Urol. 38 (1966) 294–301.