\Bibitem{Bel74} \by V.~P.~Belogrud' \paper A~tauberian theorem \jour Mat. Zametki \yr 1974 \vol 15 \issue 2 \pages 187--190 \mathnet{http://mi.mathnet.ru/mzm7334} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=387878} \zmath{https://zbmath.org/?q=an:0302.44004} \transl \jour Math. Notes \yr 1974 \vol 15 \issue 2 \pages 105--107 \crossref{https://doi.org/10.1007/BF02102387}