P. Gastmeier, D. Sohr, C. Geffers, M. Behnke, and H. Rüden. Infection Control and Hospital Epidemiology: The Official Journal of the Society of Hospital Epidemiologists of America, 28 (4):
466--72(April 2007)PMID: 17385154.
J. Moore, S. Chen, D. Turnbull, and T. Joachims. Conference of the International Society for Music Information Retrieval Conference (ISMIR), page 401-406. (2013)