References
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- Downing, J.A., Y.T. Prairie, J.J. Cole, C.M. Duarte, L.J. Tranvik, R.G. Striegl, W.H. McDowell, P. Kortelainen, N.F. Caraco, J.M. Melack & J.J. Middelburg. 2006. The global abundance and size distribution of lakes, ponds, and impoundments. Limnol. Oceanogr. 51: 2388–2397.