@article{PismaZhETF.120.650, title = {Lyapunov exponents in fundamental models of nonlinear resonance}, author = {Shevchenko, I. I.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {120}, issue = {8}, pages = {650}, year = {2024}, doi = {10.31857/S0370274X24100249}, url = {http://jetpletters.ru/ps/dx/10.31857/S0370274X24100249}, }