@misc{cryptoeprint:2014:254, author = {Thomas Pöppelmann and Lëo Ducas and Tim Güneysu}, title = {Enhanced Lattice-Based Signatures on Reconfigurable Hardware}, howpublished = {Cryptology ePrint Archive, Report 2014/254}, year = {2014}, note = {\url{https://ia.cr/2014/254}}, }You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.