@article{MZ_1972__128_171808,
     author = {L\'aszl\'o Leindler},
     title = {On {Some} {Inequalities} of {Series} of {Positive} {Terms.}},
     journal = {Mathematische Zeitschrift},
     pages = {305--310},
     publisher = {mathdoc},
     volume = {128},
     year = {1972},
     zbl = {0232.26015},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__128_171808/}
}