S. Attfield, S. Makri, J. Kalbach, A. Blandford, S. Gabrielle, и M. Edwards. Research and Advanced Technology for Digital Libraries, Volume 5173, Springer Verlag, Berlin / Heidelberg, Germany, The original publication is available at www.springerlink.com. Paper presented at ECDL 2008: the 12th European Conference on Research and Advanced Technology for Digital Libraries, 14 - 19 September 2008, Aarhus, Denmark.(сентября 2008)