1. Alfalfa Carbon and Nitrogen Sequestration Patterns and Effects of Temperature and Precipitation in Three Agro-Pastoral Ecotones of Northern China;S Chang;Plos One,2012
2. Yield evaluation of ten introduced alfalfa cultivars in beijing area of China;J Kang;Chinese Journal of Grassland,2010
3. Activities and achievements of ARC in the areas of research and production of biofertilizers, bioenergy, and fodder using biotechnology;MNA Eldin;International Biosystems,1989
4. Biological nitrogen fixation in Africa;H Ssali;Proceedings. Surgery,1985
5. Establishment of lucerne (Medicago sativa) sown on five dates with four inoculation treatments;K Wigley;New Zealand Grassland Association,2012