@article{PismaZhETF.42.421,
    title = {Spontaneous breaking of axial symmetry in k-vortices in superfluid $^3He-B$},
    author = {Volovik, G. E. and Salomaa, M. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {42},
    issue = {10},
    pages = {421},
    year = {1985},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21878.shtml},
}