Bolthausen, E. (1982). On the central limit theorem for stationary mixing random fields, Ann. Probab., 10, 1047–1050.
Chiu, L. S. (1988). Rain estimation from satellites: Areal rainfall-rain area relations, Third Conference on Satellite Meteorology and Oceanography, American Meteorological Society, Anaheim.
Cressie, N. A. C. (1993). Statistics for Spatial Data, Wiley, New York.
Kedem, B. and Pavlopoulos, H. (1991). On the threshold method for rainfall estimation: Choosing the optimal threshold level, J. Amer. Statist. Assoc., 86, 626–633.