@article{10_4153_CJM_1992_039_4, author = {Wong, James C. S.}, title = {Fixed {Point} {Theorems} for {Measurable} {Semigroups} of {Operations}}, journal = {Canadian journal of mathematics}, pages = {652--664}, year = {1992}, volume = {44}, number = {3}, doi = {10.4153/CJM-1992-039-4}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-039-4/} }