@article{BUMI_2013_9_6_1_a9,
     author = {Perneck\'a, Eva and Pick, Lubo\v{s}},
     title = {Compactness of {Hardy} {Operators} {Involving} {Suprema}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {219--252},
     publisher = {mathdoc},
     volume = {Ser. 9, 6},
     number = {1},
     year = {2013},
     zbl = {1294.47052},
     mrnumber = {3086798},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2013_9_6_1_a9/}
}