@article{PismaZhETF.32.97, title = {Self-focusing of waves on the surface of deep water}, author = {Infel'd, E.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {32}, issue = {2}, pages = {97}, year = {1980}, doi = {}, url = {http://jetpletters.ru/ps/0/article_21641.shtml}, }