One or two-hour addresses in the conferences

Periodic orbits and their bifurcations, Lumini, 1989,
Resurgent functions, Paris, 1990,
Dynamical systems, Nagoya, 1990,
Dynamics days, Berlin, 1991,
Colloque de Geometrie, Strasburg, 1991,
Complex analytic methods in dynamical systems, Rio de Janeiro, 1992,
Dynamical systems, Trieste, 1992,
Geometrical colloquium, Moscow, 1993,
Kolmogorov memorial conference, StPetersburg, 1993,
Dynamical systems, Rio de Janeiro, 1993,
Maryland-Penn State conference in Dynamical systems, College Park, 1994,
Dynamical systems, Stony Brook, 1994,
Dynamical systems, Moscow, 1994, Member of the Organizing Committee for the conference.
International Congress in Dynamical systems, Montevideo, 1995,
Ergodic Theory and Dynamical Systems (subject, not title), Jerusalem, May 1995
Dynamical Systems, Trieste, May 1995,
The Stokes Phenomenon and Hilbert's 16th Problem, Groningen, June 1995,
Geometrie complex et Systems dynamique, Paris, July 1995,
Dynamical Systems and Limit cycles (subject, not title), Lumini, September 1995,
Symposium on Dynamical Systems (subject, not title), Delft September 1995,
Workshop on Dynamical Systems, Warsow, October 1995,
Annual Meeting of AMS, Orlando, January 1995,
Contemporary problems in the Theory of dynamical systems, Nigniy Novgorod, July 1996,
20th Congress of A.M.A.S.E.S., Urbino, September 1996,
Iterates of maps, Urbino, September 1996,
Contemporary problems in mathematics, Samarkand, October 1996,
Symposium on Planar vector fields, Leida, November 1996,
Conference on Dynamical systems, Taejon, Korea, February 1997,
International Congress in Dynamical systems, Guernavaca, Mexico, June 97,
Arnoldfest (The conference in honour of V.I.Arnold's 60th birthday), Toronto, Canada, June 97,
International Conference in Dynamical systems, Rio de Janeiro, Brasil, August 97.
Conference on Polynomial vector fields, Lumini, France, October 97,
Conference: Multiple time-scaled dynamical systems, Minneapolis, USA,October 97,
Workshop on Laminations and Foliations, Stony Brook, USA, May 98,
Conference dedicated to the Novikov's 60th birthday, Moscow, May 98,
Local differentiable Dynamics and Applications to Bifurcation theory, LUC Diepenbeek, Belgium, June 98,
Workshop on Dynamical Systems, Trieste, Italy, September 98,
Memorial conference dedicated to the Pontriagin's 90th birthday, Moscow, August 98, joint talk presented by A.Gorodetski,
Penn State Dynamical Systems workshop, October 99.
International conference on Diff. Equat. Moscow, (MAI), August 99, joint talk presented by A.Gorodetski,
Conference on geometric theory of planar vector fields, Lumini, France, October 99.
Meeting of Canadian Mathematical Society, Montreal, December 99.
Workshop on asymptotic series, differential algebra and finiteness problems in non-linear Dynamical systems, June 19 - July 7, 2000, Montreal.
International conference on dynamical systems, July 19-28, 2000, IMPA, Rio-de-Janeiro.
Dynamical Systems and Related Topics, Workshop, October 26-29, 2000, Penn State University, US.
Global Invariant Manifolds in Dynamical Systems, Workshop, December 10-16, 2000, Oberwolfach, Germany.
2 talks at Petrovskii Centennial Conference, May 22-27, 2001, Moscow, Russia.
International Conference "Differential and functional-differential equations", Moscow, August 11-17, 2002,
Workshop "Differential equations" dedicated to the memory of Vladimir Lazutkin, St.Petersburg, Russia, August 18-20, 2002.
Conference In honor of the 60th birthday of J.Mather (Princeton, October 2002).
member of the Programm Commitee and a speaker at the Conference "MODERN THEORY OF DYNAMICAL SYSTEMS AND APPLICATIONS TO THEORETICAL CELESTIAL MECHANICS" dedicated to the memory and the 70th birthday of V.M. Alexeyev, Moscow, December 2002.
Conference in honor of the 100th birthday of A.Kolmogorov, Moscow, June 2003.
two talks at the Equadiff-03, Husselt, Belgium, 22-26 July 2003,
Ramis Conference, Toulouse, 22-26 Sep-tember 2003,
Dynamical systems workshop, Penn State, October 23-26, 2003.