@article{PismaZhETF.37.486, title = {Dynamical chaos and spontaneous symmetry breaking in anharmonic systems excited by a periodic external force}, author = {Kalafati, Yu. D. and Malakhov, B. A.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {37}, issue = {10}, pages = {486}, year = {1983}, doi = {}, url = {http://jetpletters.ru/ps/0/article_22867.shtml}, }