@article{PismaZhETF.80.389,
    title = {Quantum phase transition for the BEC--BCS crossover in condensed matter physics and CPT violation in elementary particle physics},
    author = {Klinkhamer, F. R. and Volovik, G. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {80},
    issue = {5},
    pages = {389},
    year = {2004},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_6230.shtml},
}