@article{PismaZhETF.93.505,
    title = {Asymmetry of bipartite quantum discord},
    author = {Fel'dman, E. B. and Zenchuk, A. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {93},
    issue = {8},
    pages = {505},
    year = {2011},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29243.shtml},
}