\Bibitem{Tsi86} \by B.~S.~Cirel'son \paper Geometrical approach to the maximum likelihood estimation of the infinite-dimentional Gaussian location. III \jour Teor. Veroyatnost. i Primenen. \yr 1986 \vol 31 \issue 3 \pages 537--549 \mathnet{http://mi.mathnet.ru/tvp1656} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=866873} \zmath{https://zbmath.org/?q=an:0617.62091} \transl \jour Theory Probab. Appl. \yr 1986 \vol 31 \issue 3 \pages 470--483 \crossref{https://doi.org/10.1137/1131061} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1987J021500009}