Isovortical orbits of autonomous, conservative, two degree-of-freedom dynamical systems Michael E. Hough OriginalPaper Pages: 1 - 18
Generalized Lagrangian orbital elements for central force problems Patrick G. WhitmanJohn J. Matese OriginalPaper Pages: 71 - 82
An observation on the inverse extended problem of Szebehely A. MelisB. Piras OriginalPaper Pages: 83 - 87
The uniqueness of normal forms via Lie transforms and its applications to Hamiltonian systems Jong C. Liu OriginalPaper Pages: 89 - 104