1. Ergodic theory, Proc. International Sympos.;A. Beck,1963
2. Anatole Beck, and Peter Warren. Weak orthogonality, Pacific J. Math. 41, 1 (1972), 1–11.
3. Anatole Beck and Peter Warren. Strong laws of large numbers for weakly orthogonal sequences of Banach space-valued random variables, Annals of Probability, (to appear).
4. Anatole Beck, Daniel P. Giesy and Peter Warren. Recent developments in the theory of strong laws of large numbers for vector-valued random variables, (unpublished).
5. Nelson Dunford and Jacob T. Schwartz. Linear operators, Part I., Interscience publishers, Inc., New-York, (1966).