@article{10_4153_CJM_1975_099_x,
     author = {Chimenti, Frank A.},
     title = {Convergence {Formulas} for {Sequences} of {Sets}},
     journal = {Canadian journal of mathematics},
     pages = {961--969},
     year = {1975},
     volume = {27},
     number = {5},
     doi = {10.4153/CJM-1975-099-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-099-x/}
}