\Bibitem{KorBor85} \by V.~S.~Korolyuk, Yu.~V.~Borovskih \paper Approximation of non-degenerate $U$-statistics \jour Teor. Veroyatnost. i Primenen. \yr 1985 \vol 30 \issue 3 \pages 417--426 \mathnet{http://mi.mathnet.ru/tvp2017} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=805294} \zmath{https://zbmath.org/?q=an:0593.62009|0572.62022} \transl \jour Theory Probab. Appl. \yr 1986 \vol 30 \issue 3 \pages 439--450 \crossref{https://doi.org/10.1137/1130057} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1986E186100001}