@Online{biblatex,
sorttitle = {biblatex package},
author = {Lehman, Philipp},
title = {\texttt{The biblatex package}},
subtitle = {{Programmable} bibliographies and citations},
version = {1.6},
date = {2012-07-29},
url = {
http://mirror.ctan.org/macros/latex/exptl/biblatex/doc/biblatex.pdf},
urldate = {2012-09-01},
annotation = {The official \texttt{biblatex} documentation.}
}
