@article{MZ_1988__199_1_173953,
     author = {J. DeFranza and D.J. Fleming},
     title = {Sequence {Spaces} and {Summability} {Factors.}},
     journal = {Mathematische Zeitschrift},
     pages = {99--108},
     publisher = {mathdoc},
     volume = {199},
     number = {1},
     year = {1988},
     zbl = {0631.40008},
     url = {http://geodesic.mathdoc.fr/item/MZ_1988__199_1_173953/}
}