Christensen, V. G., Jian, X. and Ziegler, A. C. (2000). Regression analysis and real-time
                           water-quality monitoring to estimate constituent concentrations, loads, and yields
                           in the Little Arkansas River, south-central Kansas, 1995-99, Water Resources Investigations
                           Report No. 00-4126, United States Geological Survey, Lawrence, Kansas.Christensen,
                           V. G., Jian, X. and Ziegler, A. C. (2000). Regression analysis and real-time water-quality
                           monitoring to estimate constituent concentrations, loads, and yields in the Little
                           Arkansas River, south-central Kansas, 1995-99, Water Resources Investigations Report
                           No. 00-4126, United States Geological Survey, Lawrence, Kansas.
