\Bibitem{Kry61} \by V.~Yu.~Krylov \paper A limit theorem \jour Dokl. Akad. Nauk SSSR \yr 1961 \vol 139 \issue 1 \pages 20--23 \mathnet{http://mi.mathnet.ru/dan25197} \mathscinet{https://mathscinet.ams.org/mathscinet-getitem?mr=0133146} \zmath{https://zbmath.org/?q=an:0106.34004}