1. E.B. Daniel, J.V. Camp, E.J. LeBoeuf, J.R. Penrod, M.D. Abkowitz, and J.P. Dobbins. Journal of Spatial Hydrology (2010), 10(2): pp.13-28.
2. D.K. Borah and M. Bera, M. Transactions of the American Society of Agricultural Engineers (ASAE) (2004). 47(3), pp.789-803.
3. D.Z. Sui and R.C. Maggio. Computers, Environment and Urban Systems 23(1999), pp.33-51.
4. M. F Goodchild, R. Haining, and S. Wise. International Journal of Geographical Information Systems (1992), 6, pp.407-423.
5. V. P Singh and M. Fiorentino. Kluwer Academic Publishers (1996).