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@article{PORMA_1997__54_4_48102, author = {Haukkanen, P. and Ruokonen, P.}, title = {On an analogue of completely multiplicative functions.}, journal = {Portugaliae mathematica}, pages = {407--420}, publisher = {mathdoc}, volume = {54}, number = {4}, year = {1997}, zbl = {0910.11002}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1997__54_4_48102/} }
Haukkanen, P.; Ruokonen, P. On an analogue of completely multiplicative functions.. Portugaliae mathematica, Tome 54 (1997) no. 4, pp. 407-420. http://geodesic.mathdoc.fr/item/PORMA_1997__54_4_48102/