1. Bieleski, R.L. and Ferguson, I.B. (1983) Physiology and metabolism of phosphate and its compounds. in A. Lauchli and R.L. Bieleski (eds.) Inorganic Plant Nutrition, Encyclopedia of Plant Physiology, New Series, Vol. 15A, Spinger-Verlag, Berlin, pp 422–449.
2. Brown, L. (1997) Facing the challenge of food scarcity: Can we raise the grain yields fast enough? in T. Ando, K. Fujita, T. Mae, H. Matsumoto, S. Mori and J. Sekira (eds.) Plant Nutrition for Sustainable Food Production and Environment, Kluwer Academic Publishers, Dordrecht, pp. 15–24.
3. Clarkson, D.T. and Grignon, C. (1991) The phosphate transport system and its regulation in roots, in C. Johansen, K.K. Lee, and K.L. Sahrawat, Phosphorus nutrition of grain legumes in the semi-arid tropics, ICRISAT, Pancheru, pp. 49–62.
4. Clarkson, D.T. and Hawkesford, M.J. (1993) Molecular biology approaches to plant nutrition, Plant and Soil
155/156, 21–31.
5. Da Silva, A.E., and Gabehnan, W.H. (1993) Screening maize inbred lines for tolerance to low-P stress condition, in P.J. Randall, E. Delhaize, R.A. Richards, and R. Munns (eds.) Genetic Aspects of Plant Mineral Nutrition, Kluwer Academic Publishers, Dordrecht, pp. 233–239.