International Conference on Formal Concept Analysis Nicosia, Cyprus, SpringerLink (Online service), Valtchev, P., & Jäschke, R. (2011). Formal concept analysis: 9th International Conference, ICFCA 2011, Nicosia, Cyprus, May 2-6, 2011. Proceedings. Springer.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিInternational Conference on Formal Concept Analysis Nicosia, Cyprus, SpringerLink (Online service), Petko Valtchev, এবং Robert Jäschke. Formal Concept Analysis: 9th International Conference, ICFCA 2011, Nicosia, Cyprus, May 2-6, 2011. Proceedings. Berlin, Heidelberg: Springer, 2011.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিInternational Conference on Formal Concept Analysis Nicosia, Cyprus, et al. Formal Concept Analysis: 9th International Conference, ICFCA 2011, Nicosia, Cyprus, May 2-6, 2011. Proceedings. Springer, 2011.