Cryptology ePrint Archive: BibTeX Citation of Report 2014/528

@misc{cryptoeprint:2014:528,
    author = {Xiaofeng Wang and Chen Xu and Guo Li and Hanling Lin},
    title = {Groups With Two Generators Having Unsolvable Word Problem And Presentations of Mihailova Subgroups},
    howpublished = {Cryptology ePrint Archive, Report 2014/528},
    year = {2014},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.