The unit ball of every infinite-dimensional normed linear space contains a (1+ɛ)-separated sequence J. Elton; E. Odell — 1981 Colloquium Mathematicae
Erratum Invariant measures for Markov processes arising from iterated function systems with place-dependent probabilities M. F. Barnsley; S. G. Demko; J. H. Elton; J. S. Geronimo — 1989 Annales de l'I.H.P. Probabilités et statistiques
Invariant measures for Markov processes arising from iterated function systems with place-dependent probabilities M. F. Barnsley; S. G. Demko; J. H. Elton; J. S. Geronimo — 1988 Annales de l'I.H.P. Probabilités et statistiques