1. Almengor-Hecht, M. L. A. T. Bull (1978). Continuous-flow enrichment of a strain of Erwinia carotovora having specificity for highly methylated pectin. Archives of Microbiology 119: 163–166.
2. Bailey, J. E., D. F. Ollis. (1977). Biochemical Engineering Fundamentals. New York. McGraw-Hill Book Co.
3. Brooks, J. D., J. L. Meers. (1973). The effect of discontinuous methanol addition on the growth of a carbon-limited culture Pseudomonas. Journal of General Microbiology 77: 513–519.
4. Bryson, V. (1952). Microbial Selection II. The turbidostatic selector - a device for automatic isolation of bacterial variants. Science, N.Y. 116: 48–51.
5. Bull, A. T. (1981). Strategies in microbial process optimization. In Global Impacts of Applied Microbiology Sixth Interna tional Conference, pp. 623–645. Edited by S.O. Emejuaiwe, 0. Ogunbi and S.O. Sanni. London: Academic Press.