@article{PismaZhETF.23.171,
    title = {Electrodynamics of exciton pairing in low-dimensionality crystals without inversion centers},
    author = {Shevchenko, S. I. and Kulik, I. O.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {3},
    pages = {171},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27452.shtml},
}