@article{10_14708_cm_v29i2_6265,
     author = {H. Cakalli and B. Thorpe},
     title = {On summability in topological groups and a theorem of {D.} {L.} {Prullage}},
     journal = {Commentationes Mathematicae},
     pages = { 139--148},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1990},
     doi = {10.14708/cm.v29i2.6265},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v29i2.6265/}
}