\Bibitem{Tol77} \by G.~K.~Tolokonnikov \paper Associative Hamiltonian algebras \jour TMF \yr 1977 \vol 31 \issue 2 \pages 250--255 \mathnet{http://mi.mathnet.ru/tmf3007} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=509922} \zmath{https://zbmath.org/?q=an:0386.70022} \transl \jour Theoret. and Math. Phys. \yr 1977 \vol 31 \issue 2 \pages 441--445 \crossref{https://doi.org/10.1007/BF01036677}