2014

Scholz, C.; Macek, B.-E.; Atzmueller, M.; Doerfel, S. & Stumme, G. (2014), Mining Social Links for Ubiquitous Knowledge Engineering, in Klaus David; Kurt Geihs; Jan Marco Leimeister; Alexander Roßnagel; Ludger Schmidt; Gerd Stumme & Arno Wacker, ed., 'Socio-technical Design of Ubiquitous Computing Systems' , Springer International Publishing, , pp. 109-129 .

2008

Manning, C. D.; Raghavan, P. & Schütze, H. (2008), Introduction to Information Retrieval , Cambridge University Press , New York .

2005

de Nooy, W.; Mrvar, A. & Batagelj, V. (2005), Exploratory Social Network Analysis with Pajek (Structural Analysis in the Social Sciences) , Cambridge University Press .

Diestel, R. (2005), Graph Theory , Springer-Verlag Heidelberg, New York .