\Bibitem{Fel91} \by G.~M.~Feldman \paper The Cauchy distribution on abelian groups and its characterization \jour Teor. Veroyatnost. i Primenen. \yr 1991 \vol 36 \issue 4 \pages 711--723 \mathnet{http://mi.mathnet.ru/tvp1778} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1147172} \zmath{https://zbmath.org/?q=an:0776.60011|0746.60009} \transl \jour Theory Probab. Appl. \yr 1991 \vol 36 \issue 4 \pages 670--681 \crossref{https://doi.org/10.1137/1136084} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1991KG46300002}