@article{PismaZhETF.50.428,
    title = {Incommensurate structures in high-$T_c$ superconducting crystals},
    author = {Zaretskii, V. V. and Zaretskaya-Eliashberg, V. A. and Kosmyna, M. B.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {50},
    issue = {10},
    pages = {428},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17150.shtml},
}