\Bibitem{Sed81} \by V.~D.~Sedykh \paper Moduli of singularities of convex hulls \jour Russian Math. Surveys \yr 1981 \vol 36 \issue 5 \pages 175--176 \mathnet{http://mi.mathnet.ru/eng/rm3081} \crossref{https://doi.org/10.1070/RM1981v036n05ABEH003052} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=637453} \zmath{https://zbmath.org/?q=an:0495.58004|0513.58008} \adsnasa{https://adsabs.harvard.edu/cgi-bin/bib_query?1981RuMaS..36..175S} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1981QH90100024}