@article{PMF_1910_21_1_a8,
     author = {Axer, A.},
     title = {Beitrag zur {Kenntnis} der zahlentheoretischen {Funktionen} \ensuremath{\mu}(n) und \ensuremath{\lambda}(n).},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {65--95},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1910},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/PMF_1910_21_1_a8/}
}