@article{PismaZhETF.13.452,
    title = {Extension of the Algebra of Poincare Group Generators and Violation of P invariance},
    author = {Gol'fand, Yu. A and Likhtman, E. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {13},
    issue = {8},
    pages = {452},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24309.shtml},
}