@article{PismaZhETF.45.44,
    title = {Metastable vortex in superfluid $^3He-B$},
    author = {Volovik, G. E. and Salomaa, M. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {1},
    pages = {44},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18668.shtml},
}