1. Analyses of yield trends of the rice–wheat system in north-western India;Aggarwal;Outlook Agric.,2000
2. Aggarwal, P.K., Talukdar, K.K, Mall, R.K., 2000b. Potential yields of rice–wheat system in the Indo-Gangetic plains of India. Rice–wheat Consortium Paper Series 10. RWCIGP, CIMMYT, New Delhi, India, p. 16.
3. Aggarwal, P.K., Roetter, R., Kalra, N., C.T., Hoanh, van Keulen, H., Laar, H.H., 2001. Land use analysis and planning for sustainable food security, with an illustration for the state of Haryana. Indian Agricultural Research Institute, New Delhi, International Rice Research Institute, Philippines and Wageningen University, Netherlands. p. 167.
4. Ali, M., Byerlee, D., 2000. Productivity growth and resource degradation in Pakistan's Punjab: a decomposition analysis. Policy Economic Working Paper No. 2480. World Bank, Washington, DC.
5. How widespread are yield declines in long-term rice experiments in Asia?;Dawe;Field crops Res.,2000