@article{MZ_1975__143_172225,
     author = {John A. Fridy},
     title = {Summability of {Rearrangements} of {Sequences.}},
     journal = {Mathematische Zeitschrift},
     pages = {187--192},
     publisher = {mathdoc},
     volume = {143},
     year = {1975},
     zbl = {0292.40002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__143_172225/}
}