1. P metabolism in the bean-Rhizobium tropici symbiosis;Al-Niemi;Plant Physiol.,1997
2. Beebe, S., Yan, X., Ochoa, I., Lynch, J., 1994. Phaseolus vulgaris germplasm resources and tolerance to phosphorus deficiency. In: Proceedings of the Second International Scientific Meeting on Phaseolus Bean Advanced Biotechnology Research Network, Cali, Colombia, pp. 358–361.
3. Breeding common bean for improved biological nitrogen fixation;Bliss;Plant Soil,1993
4. Effect of phosphorus deficiency on growth angle of basal roots in Phaseolus vulgaris;Bonser;New Phytol.,1996
5. Bremner, J.M., 1996. Nitrogen-total. In: Methods of Soil Analysis. Part 3. Chemical Methods. Soil Science Society of America and American Society of Agronomy, Madison, WI, pp. 1085–1089.