Pande, S and Sharma, S B and Ramakrishna, A  (2000) Biotic stresses affecting legumes production in the Indo-Gangetic Plain.   In:  Legumes in rice and wheat cropping systems of the Indo-Gangetic Plain - constraints and opportunities.   International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Andhra Pradesh, India, pp. 129-155.  ISBN 92-9066-418-5