Жавлиева, Ардак. 2026. “Hamiltonian Formalism of Periodic Collisionless Motion of Particles in a Field”. BULLETIN OF THE L.N. GUMILYOV EURASIAN NATIONAL UNIVERSITY. PHYSICS. ASTRONOMY SERIES 155 (2):82-91. https://doi.org/10.32523/2616-6836-2026-155-2-82-91.