\Bibitem{Khu00} \by V.~T.~Khudalov \paper On Tensor Products of $l$-Operators and $bo$-Operators \jour Mat. Zametki \yr 2000 \vol 68 \issue 5 \pages 756--760 \mathnet{http://mi.mathnet.ru/mzm995} \crossref{https://doi.org/10.4213/mzm995} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=1835456} \zmath{https://zbmath.org/?q=an:1099.47511} \transl \jour Math. Notes \yr 2000 \vol 68 \issue 5 \pages 640--643 \crossref{https://doi.org/10.1023/A:1026627825854} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000166684000011}