Perturbations of Systems Describing the Motion of a Particle in Central Fields
Christov, Ognyan; Dragnev, Dragomir
Serdica Mathematical Journal (1995)
- Volume: 21, Issue: 2, page 91-108
- ISSN: 1310-6600
Christov, Ognyan; Dragnev, Dragomir
Serdica Mathematical Journal (1995)