1. Beirlant, J., Teugels, J.L., Vynckier, P., 1996a. Practical Analysis of Extreme Values. Leuven University Press, Leuven.
2. Tail index estimation, Pareto quantile plots, and regression diagnostics;Beirlant;J. Amer. Statist. Assoc.,1996
3. Bingham, N.H., Goldie, C.M., Teugels, J.L., 1987. Regular Variation. Cambridge University Press, Cambridge.
4. Kernel estimates of the tail index of a distribution;Csörgő;Ann. Statist.,1985
5. Csörgő, M., Horváth, L., 1993. Weighted Approximations in Probability and Statistics. Wiley, New York.