@article{PismaZhETF.22.412,
    title = {Dispersion of orbital waves in the A phase of superfluid $He^3$},
    author = {Volovik, G. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {22},
    issue = {8},
    pages = {412},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23357.shtml},
}