J. Mueller, S. Doerfel, M. Becker, A. Hotho, и G. Stumme. Proceedings of the Fifth ACM RecSys Workshop on Recommender Systems and the Social Web co-located with the 7th ACM Conference on Recommender Systems (RecSys 2013) Hong Kong, China, October 13, 2013., 1066, CEUR-WS, (2013)
R. Jäschke, и S. Rudolph. Contributions to the 11th International Conference on Formal Concept Analysis, стр. 19--34. Technische Universität Dresden, (мая 2013)