@article{PismaZhETF.48.61,
    title = {Extension of the Penrose representation and its use to describe supersymmetric models},
    author = {Volkov, D. V. and Zheltukhin, A. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {48},
    issue = {2},
    pages = {61},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16640.shtml},
}