Luterbacher, M. C., Smith, J. M., Asher, M. J. C. and Frese, L. 2000. Disease resistance in collections of Beta species. Journal of sugar beet research. 37, pp. 39-47.
Francis, S. A. and Asher, M. J. C. 2000. Exploiting novel sources of disease resistance in Beta germplasm using molecular markers. Journal of sugar beet research. 37, pp. 89-95.
Thomas, T. H., Asher, M. J. C., Smith, H. G., Clarke, N. A., Mutasa-Göttgens, E. S., Stevens, M. and Thompson, J. R. 1993. The development of diagnostics for evaluating Beta germplasm. Journal of sugar beet research. 30, pp. 261-266.
Scott, R. K. and Jaggard, K. W. 1993. An analysis of the efficiency of the sugar beet crop in exploiting the environment. Journal of sugar beet research. 30, pp. 37-56.