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- [4] Further analysis of data from biological surveys of the River Taff Water Pollution Control, 1974, 73 (05): : 576 - 583
- [5] A WATERSHED NITROGEN AND PHOSPHORUS BALANCE - THE UPPER POTOMAC RIVER BASIN ESTUARIES, 1992, 15 (01): : 83 - 95
- [7] Topological Data Analysis and UNICEF Multiple Indicator Cluster Surveys Journal of Quantitative Economics, 2022, 20 : 281 - 309