@article{BUMI_2012_9_5_1_a9,
     author = {Georgiou, Dimitris N.},
     title = {Topologies on {Hyperspaces1}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {173--186},
     publisher = {mathdoc},
     volume = {Ser. 9, 5},
     number = {1},
     year = {2012},
     zbl = {1259.54002},
     mrnumber = {2919655},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2012_9_5_1_a9/}
}