@article{10_4064_ap_6_2_171_180,
     author = {A. Alexiewicz and W. Orlicz},
     title = {On summability of double sequences {(II)}},
     journal = {Annales Polonici Mathematici},
     pages = {171--180},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1959},
     doi = {10.4064/ap-6-2-171-180},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-6-2-171-180/}
}