@article{PismaZhETF.60.629, title = {Modulational instability at sum and difference frequencies in media with a high-order nonlinearity}, author = {Vlasov, S. N. and Talanov, V. I.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {60}, issue = {9}, pages = {629}, year = {1994}, doi = {}, url = {http://jetpletters.ru/ps/0/article_20408.shtml}, }