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MR ZblHeil, Erhard. On an oscillation criterion of Hartman, Wintner and Potter. Archivum mathematicum, Tome 15 (1979) no. 2, pp. 81-91. http://geodesic.mathdoc.fr/item/ARM_1979_15_2_a1/
@article{ARM_1979_15_2_a1,
author = {Heil, Erhard},
title = {On an oscillation criterion of {Hartman,} {Wintner} and {Potter}},
journal = {Archivum mathematicum},
pages = {81--91},
year = {1979},
volume = {15},
number = {2},
mrnumber = {563141},
zbl = {0378.34026},
language = {en},
url = {http://geodesic.mathdoc.fr/item/ARM_1979_15_2_a1/}
}
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