1.

Conference Proceedings
Conference Proceedings
1. Nekhoroshev and KAM theorems revisited via a unified approach
Delshams A. ; Gutierrez P.
Pub. info.: Hamiltonian mechanics : integrability and chaotic behavior.  pp.299-306,  1994.  New York.  Plenum Press
Title of ser.: NATO ASI series. Series B, Physics
Ser. no.: 331
2.

Conference Proceedings
Conference Proceedings
2. EXPONENTIALLY SMALL ESTIMATES FOR KAM THEOREM NEAR AN ELLIPTIC EQUILIBRIUM POINT
Delshams A. ; Gutierrez P.
Pub. info.: Hamiltonian systems with three or more degrees of freedom.  pp.386-390,  1999.  Dordrecht, Mass..  Kluwer Academic Publishers
Title of ser.: NATO ASI series. Series C, Mathematical and physical sciences
Ser. no.: 533