@article{PismaZhETF.23.249,
    title = {Double phase transitions in asymmetrical systems},
    author = {Gurevich, Yu. Ya. and Kharkats, Yu. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {5},
    pages = {249},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27474.shtml},
}