1. P. Grassberger and I. Procaccia, Phys. Rev. Lett. 50, 346 (1983).
2. F. Takens, “Invariants related to dimension and entropy”, in Atas do 13° Coloqkio Brasiliero de Matematica, Rio de Janeiro, 1983, in “Dynamical Systems and Bifurcations”, B. L. J. Braaksma, H. W. Broer and F. Takens, eds., L. N. Mathematics, No. 1125, Springer-Verlag, Berlin, 1985).
3. See, for instance, J. Doyne Farmer, Edward Ott and James A. Yorke, Physica 7D, 153 (1983) for discussion of a variety of notions of dimension.
4. P. Grassberger, Phys. Letters 97A, 227 (1983).
5. H. G. E. Hentschel and I. Procaccia, Physica 8D, 435 (1983); P. Grassberger and I. Procaccia, Physica 13D, 34 (1984).