1. Alexander RB, Slack JR, Ludtke AS, Fitzgerald KK, Shertz TL (1996) Data from selected U.S. Geological Survey national stream water quality monitoring networks. US Geol Surv Digital Data Ser DDS–37 2 CD-ROM
2. Baedecker MJ, Friedman LC (2000) Water, energy, and biogeochemical budgets—a watershed research program. US Geol Surv Fact Sheet 165–99
3. Basu NB, Destouni G, Jawitz JW, Thompson SE, Loukinova NV, Darracq A, Zanardo S, Yaeger M, Sivapalan M, Rinaldo A, Rao PSC (2010) Nutrient loads exported from managed catchments reveal emergent biogeochemical stationarity. Geophys Res Lett 37:L23404. doi: 10.1029/2010GL045168
4. Beven KJ, Germann P (1982) Macropores and water flows in soils. Water Resour Res 18:1311–1325
5. Bevington PR, Robinson KD (2003) Data reduction and error analysis for the physical sciences, 2nd edn. McGraw Hill, New York