Gupta, Prabhat K. and Gupta, Vandana and Sharma, C. and Das, S. N. and Purkait, N. and Adhya, T. K. and Pathak, H. and Ramesh, R. and Baruah, K. K. and Venkatratnam, L. and Singh, Gulab and Iyer, C.S.P. (2008) Development of methane emission factors for Indian paddy fields and estimation of national methane budget. Chemosphere , 74 (4). pp. 590-598. ISSN 0045-6535