SpringerLink (Online service), Wen, P., Li, Y., Polkowski, L., Yao, Y., Tsumoto, S., & Wang, G. (2009). Rough Sets and Knowledge Technology: 4th International Conference, RSKT 2009, Gold Coast, Australia, July 14-16, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Peng Wen, Yuefeng Li, Lech Polkowski, Yiyu Yao, Shusaku Tsumoto, και Guoyin Wang. Rough Sets and Knowledge Technology: 4th International Conference, RSKT 2009, Gold Coast, Australia, July 14-16, 2009. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Rough Sets and Knowledge Technology: 4th International Conference, RSKT 2009, Gold Coast, Australia, July 14-16, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer, 2009.
