Alagarswamy, G and Bidinger, F R  (1985) Genotypic variation in biomass production and nitrogen use efficiency in pearl millet [Pennisetum americanum (L.) Leeke].   In:  Genetic Aspects of Plant Mineral Nutrition: Proceedings of the Second International Symposium on Genetic Aspects of Plant Mineral Nutrition, organized by the University of Wisconsin, Madison, June 16–20, 1985.   Developments in plant and soil sciences, 27 .  Martinus Nijhoff, Dordrecht, pp. 281-286.  ISBN 978-94-010-8102-3