Alexander Pavlovich Ivanov. On his 60th Birthday 2011, Vol. 7, No. 3, pp. 515-520 Citation: Alexander Pavlovich Ivanov. On his 60th Birthday, Rus. J. Nonlin. Dyn., 2011, Vol. 7, No. 3, pp. 515-520 DOI:10.20537/nd1103007 Download File PDF, 1.88 Mb This work is licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported License