%0 Journal Article %A Chimenti, Frank A. %T Convergence Formulas for Sequences of Sets %J Canadian journal of mathematics %D 1975 %P 961-969 %V 27 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-099-x/ %R 10.4153/CJM-1975-099-x %F 10_4153_CJM_1975_099_x