@article{AIHPB_1983__19_1_91_0,
     author = {Weizs\"acker, Heinrich V.},
     title = {Exchanging the order of taking suprema and countable intersections of $\sigma $-algebras},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {91--100},
     publisher = {Gauthier-Villars},
     volume = {19},
     number = {1},
     year = {1983},
     zbl = {0509.60002},
     language = {en},
     url = {http://www.numdam.org/item/AIHPB_1983__19_1_91_0/}
}