Singh, Raj Mohan, and Datta, Bithin (2006) Identification of groundwater pollution sources using GA-based linked simulation optimization model. Journal of Hydrologic Engineering, 11 (2). pp. 101-109.

Singh, Raj Mohan, Datta, Bithin, and Jain, Ashu (2004) Identification of unknown groundwater pollution sources using artificial neural networks. Journal of Water Resources Planning and Management, 130 (6). pp. 506-514.