1. Barnes, H. H.; Golden, H. G. 1966: Magnitude and Frequency of Floods, Part 2-B, U.S. Geological Survey, Water Supply Paper 1674, 409 p.
2. Benson, M. A. 1968: Uniform flood-frequency estimating methods for federal agencies, Water Resour. Res. 4, 891–908
3. Bodhaine, G. L.; Thomas, D. M. 1964: Magnitude and Frequency of Floods, Part 12, U.S. Geol. Survey, Water Supply Paper 1687, 337 p.
4. Butler, E.; Reid, J. K.; Berwick, V. K. 1966: Magnitude and Frequency of Floods, Part 10, U.S. Geol. Survey, Water Supply Paper 1684, 256 p.
5. Feder, J. 1988: Fractals, Plenum Press, 1988, 283 p.