@article{JRAM_1973__260_151315,
     author = {D. Borwein and J.H. Rizvi},
     title = {On strong summability.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {119--126},
     publisher = {mathdoc},
     volume = {260},
     year = {1973},
     zbl = {0255.40006},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1973__260_151315/}
}