@article{MZ_1972__126_171742,
     author = {Kenneth Lee Jones},
     title = {An {Elementary} {Lemma} on {Sequences} of {Integers} and {Its} {Apllications} to {Functional} {Analysis.}},
     journal = {Mathematische Zeitschrift},
     pages = {299--307},
     publisher = {mathdoc},
     volume = {126},
     year = {1972},
     zbl = {0244.28010},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__126_171742/}
}