@article{PismaZhETF.2.157,
    title = {Unitary Symmetry and the Poincare Group},
    author = {Fushchich, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {2},
    issue = {4},
    pages = {157},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24487.shtml},
}