@article{CMJ_2009__59_4_a21,
     author = {Das, Pratulananda and Bhunia, Santanu},
     title = {Two valued measure and summability of double sequences},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1141--1155},
     publisher = {mathdoc},
     volume = {59},
     number = {4},
     year = {2009},
     mrnumber = {2563584},
     zbl = {1224.40009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2009__59_4_a21/}
}