@article{PismaZhETF.93.746,
    title = {{Upper critical magnetic field in a Ba}$_{\bf0.68}${K}$_{\bf0.32}${Fe}$_{\bf2}${As}$_{\bf2}${ and Ba(Fe}$_{\bf0.93}${Co}$_{\bf0.07})_{\bf2}${As}$_{\bf2}$},
    author = {Gasparov, V. A. and Drigo, L. and Audouard, A. and Sun, D. L. and Lin, C. T. and Bud'ko, S. L. and Canfield, P. C. and Wolff-Fabris, F and Wosnitza, J.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {93},
    issue = {11},
    pages = {746},
    year = {2011},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29318.shtml},
}