TY - BOOK AU - Delgado, J. . TI - Hamiltonian systems and celestial mechanics (HAMSYS-98): proceedings of the III international symposium / SN - 981-02-4463-0 U1 - B7p1N8 PY - 2000/// CY - Singapore : PB - World Scientific Publishing Co. Pte. Ltd. , KW - Mathematics- Mechanic ER -