1. On a higher integral invariant for closed magnetic lines;Akhmet'ev;J. Geom. Phys.,2013
2. On combinatorial properties of a higher asymptotic ergodic invariant of magnetic lines;Akhmet'ev;J. Phys. Conf. Ser.,2014
3. On Arnold's problem on higher analogs of the asymptotic Hopf invariant;Akhmet'ev;J. Math. Sci.,2015
4. Knot invariants in geodesic flows;Akhmet'ev,2020
5. Magnetic helicity flux for mean magnetic field equations;Akhmet'ev;Teor. Mat. Fiz.,2020