@article{CMUC_2009_50_1_a4,
     author = {Banakh, Iryna and Banakh, Taras and Riss, Elena},
     title = {On $r$-reflexive {Banach} spaces},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {61--74},
     year = {2009},
     volume = {50},
     number = {1},
     mrnumber = {2562803},
     zbl = {1212.46022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2009_50_1_a4/}
}