Primary author text: arxiv.org/pdf/0804.2981 . Archive: arxiv.org/abs/0804.2981 . Title page identifies Matteo G. A. Paris. Cited passage: Section 2, symmetric logarithmic derivative, quantum Fisher information and single-parameter quantum Cramér-Rao bound. The arXiv submission is 2008, journal publication 2009; the PDF typesetting date is not a new publication date.