@article{PismaZhETF.45.25,
    title = {Charge ordering in mixed-valence cluster systems},
    author = {Klokishner, S. I. and Tsukerblat, B. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {1},
    pages = {25},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18661.shtml},
}