1. Fakhoury, H.: Sélections continues dans les espaces uniformes. C.R. Acad. Sci. Paris Sér. A 280 (1975) 213–216.
2. Graf, S.: Schnitte Boolescher Korrespondenzen und ihre Dualisierung. Thesis. Erlangen 1973.
3. Halmos, P.: Algebraic Logic. New York: Chelsea 1962.
4. Ionescu Tulcea, A.: On the lifting property V. Ann. Math. Stat. 36 (1965) 819–828.
5. Ionescu Tulcea, A. and Ionescu Tulcea, C.: On the existence of a lifting commuting with the left translations of an arbitrary locally compact group. ‘Proceedings Fifth Berkeley Symposium of Math. Stat. and Probability’ 63–67. University of California Press 1967.