1. H. A. Dye,On groups of measure-preserving transformations, I, Amer. J. Math.81 (1959), 119–159.
2. J. Feldman,New K-automorphisms and a problem of Kakutani, Israel J. Math.24 (1976), 16–38.
3. M. Gerber,Classifying the finite extensions of an ergodic transformation up to factor orbit equivalence, preprint.
4. D. S. Ornstein,Ergodic Theory, Randomness and Dynamical Systems, Yale University Press, New Haven, 1970.
5. D. Rudolph,An isomorphism theory for Z-skew-compact group actions, preprint.