1. Abramowitz M, Stegun IA (1972) Handbook of mathematical functions. Dover, New York
2. Ajayi GO, Olsen RL (1985) Modelling of a raindrop size distribution for microwave and millimetre wave applications. Radio Sci 20(2):193–202
3. Ang H-SA, Tang WH (1990) Probability concepts in engineering planning and design, volume II: decision, risk, and reliability. Copyright Ang & Tang
4. Beard LR (1962) Statistical methods in hydrology (Civil Works Investigations Project CW-151). United States Army Engineer District. Corps of Engineers, Sacramento, CA
5. Benjamin JR, Cornell CA (1970) Probability, statistics, and decision for civil engineers. McGraw-Hill, New York