@article{10_4064_ap_2_2_170_181,
     author = {A. Alexiewicz and W. Orlicz},
     title = {On summability of double sequences {(I)}},
     journal = {Annales Polonici Mathematici},
     pages = {170--181},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1955},
     doi = {10.4064/ap-2-2-170-181},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-2-2-170-181/}
}