@article{10_4064_ap_11_1_13_17,
     author = {{\CYRV}. {\CYRG}{\cyro}{\cyrl}{\cyru}{\cyrb}{\cyre}{\cyrp} and {\CYRO} {\CYRF}{\cyro}{\cyrm}{\cyre}{\cyrp}{\cyrk}{\cyro}},
     title = {{\CYRO} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrya}{\cyrh} $\ensuremath{\varphi}_2(n)$, $\ensuremath{\mu}_2(n)$, $\ensuremath{\zeta}_2(s)$},
     journal = {Annales Polonici Mathematici},
     pages = {13--17},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1961},
     doi = {10.4064/ap-11-1-13-17},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-11-1-13-17/}
}