Bezuglyi, Sergey (2000), "Groups of automorphisms of a measure space and weak equivalence of cocycles", Descriptive set theory and dynamical systems (Marseille-Luminy, 1996), London Math. Soc. Lecture Note Ser., vol. 277, Cambridge Univ. Press, Cambridge, pp. 59–86, MR1774424. See p. 62 for an example of this usage.
Bezuglyi, Sergey (2000), "Groups of automorphisms of a measure space and weak equivalence of cocycles", Descriptive set theory and dynamical systems (Marseille-Luminy, 1996), London Math. Soc. Lecture Note Ser., vol. 277, Cambridge Univ. Press, Cambridge, pp. 59–86, MR1774424. See p. 62 for an example of this usage.