Afterword to the paper by N.N.Nekhoroshev 2016, Vol. 12, No. 3, pp. 542-552 Citation: Afterword to the paper by N.N.Nekhoroshev, Rus. J. Nonlin. Dyn., 2016, Vol. 12, No. 3, pp. 542-552 Download File PDF, 4.98 Mb This work is licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported License