1. Formation of Nodular structure on rice seedlings by rhizobia;Al-Mallah;J. exp. Bot.,1989
2. Formation of nodule-like structures on the roots of the nonlegumes rice and wheat;Bender,1990
3. Influence of plant growth substances on growth and nitrogenase activity from Azospirillum brasilense;Christiansen-Weninger,1988
4. Nodulation of non-legumes by rhizobia;Cocking,1990
5. Biochemical and molecular studies of symbiotic nitrogen fixation;de Bruijn;Curr. Opinion Biotechnol.,1991