\Bibitem{Oja88} \by \`E.~F.~Oja \paper Strong uniqueness of the extension of linear continuous functionals according to the Hahn--Banach theorem \jour Mat. Zametki \yr 1988 \vol 43 \issue 2 \pages 237--246 \mathnet{http://mi.mathnet.ru/mzm4385} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=939524} \zmath{https://zbmath.org/?q=an:0665.46004|0655.46006} \transl \jour Math. Notes \yr 1988 \vol 43 \issue 2 \pages 134--139 \crossref{https://doi.org/10.1007/BF01152551} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1988Q736900025}