1. Bengraine, K., Marhaba, T.F.: Using principle component analysis to monitor spatial and temporal changes in water quality. Journal of Hazardous Materials 100(1-3), 179–195 (2003)
2. Guler, C., Thyne, G.D.: Hydrologic and geologic factors controlling surface and groundwater chemistry in Indian wells-Owens Valley area, southeastern California. Journal of Hydrology 285(1-4), 177–198 (2004)
3. MacQueen, J.B., Foster, I., Kesselman, C.: Some Methods for classification and Analysis of Multivariate Observations: Procee C.: The Grid: Blueprint for a New Computing Infrastructure. In: Proc. Fifth Berkeley Symp. on Math. Statist. and Prob., vol. 1, pp. 281–297. Univ. of. Calif. Press, Berkeley (1967)
4. Dogan, E., Sengorur, B., Koklu, R.: Modeling biological oxygen demand of the Melen River in Turkey using an artificial neural network technique. Journal of Environmental Management (2008)
5. Areerachakul, S., Sanguansintukul, S.: Water Classification Using Neural Network: A Case Study of Canals in Bangokok. In: The 4th International Conference for Internet Technology and Secured Transactions (ICITST 2009), Thailand. IEEE Press, United Kingdom (2009)