Some special vapnik-chervonenkis classes. - Roberta S. Wenocur; Richard M. Dudley (Discret. Math., 1981)

A metric entropy bound is not sufficient for learnability. - Richard M. Dudley; Sanjeev R. Kulkarni; T. J. Richardson; Ofer Zeitouni (IEEE Trans. Inf. Theory, 1994)

The Generic Chaining: Upper and Lower Bounds of Stochastic Processes, by Michel Talagrand , Springer-Verlag, 2005. - Richard M. Dudley (Comb. Probab. Comput., 2007)