@article{PismaZhETF.52.1100,
    title = {Interpretation of the $La_2CuO_{4+\delta}$ phase diagram},
    author = {Gor'kov, L. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {52},
    issue = {9},
    pages = {1100},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17546.shtml},
}