@article{PismaZhETF.84.176,
    title = {Kosterlitz -- Thouless phase transition in microcavity polariton system},
    author = {Lozovik, Yu. E. and Semenov, A. G. and Willander, M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {84},
    issue = {3},
    pages = {176},
    year = {2006},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16209.shtml},
}