Roots of multiplicative functions
Compositio Mathematica, Volume 65 (1988) no. 3, p. 349-358 
@article{CM_1988__65_3_349_0,
     author = {Carroll, Tim and Gioia, A. A.},
     title = {Roots of multiplicative functions},
     journal = {Compositio Mathematica},
     publisher = {Kluwer Academic Publishers},
     volume = {65},
     number = {3},
     year = {1988},
     pages = {349-358},
     zbl = {0637.10005},
     mrnumber = {932075},
     language = {en},
     url = {http://www.numdam.org/item/CM_1988__65_3_349_0}
}

Carroll, Tim; Gioia, A. A. Roots of multiplicative functions. Compositio Mathematica, Volume 65 (1988) no. 3, pp. 349-358. http://www.numdam.org/item/CM_1988__65_3_349_0/

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