\Bibitem{Lip86} \by V.~D.~Lipovskii \paper Hamiltonian structure of the Kadomtsev--Petviashvili--II equation in the class of decreasing Cauchy data \jour Funktsional. Anal. i Prilozhen. \yr 1986 \vol 20 \issue 4 \pages 35--45 \mathnet{http://mi.mathnet.ru/faa1313} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=878043} \zmath{https://zbmath.org/?q=an:0675.35072} \transl \jour Funct. Anal. Appl. \yr 1986 \vol 20 \issue 4 \pages 282--291 \crossref{https://doi.org/10.1007/BF01083494} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=A1986J362600005}