<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Manning, Christopher D. / Raghavan, Prabhakar / Schütze, Heinrich</hi> (2008): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Introduction to information retrieval</hi> 1. Cambridge: Cambridge University Press.