@article{PismaZhETF.45.215,
    title = {Equation of continuity for the helicity in media with an infinite conductivity},
    author = {Gordin, V. A. and Petviashvili, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {5},
    pages = {215},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18726.shtml},
}