@article{JRAM_1976__280_151674,
     author = {Lutz Lucht},
     title = {Absch\"atzungen von {Summen} \"uber multiplikative {Funktionen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {91},
     publisher = {mathdoc},
     volume = {280},
     year = {1976},
     zbl = {0318.10031},
     language = {un},
     url = {https://geodesic-test.mathdoc.fr/item/JRAM_1976__280_151674/}
}