SpringerLink (Online service), Abramowicz, W., Maciaszek, L., & Węcel, K. (2011). Business Information Systems Workshops: BIS 2011 International Workshops and BPSC International Conference, Poznań, Poland, June 15-17, 2011. Revised Papers. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Witold Abramowicz, Leszek Maciaszek, και Krzysztof Węcel. Business Information Systems Workshops: BIS 2011 International Workshops and BPSC International Conference, Poznań, Poland, June 15-17, 2011. Revised Papers. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2011.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Business Information Systems Workshops: BIS 2011 International Workshops and BPSC International Conference, Poznań, Poland, June 15-17, 2011. Revised Papers. Springer Berlin Heidelberg : Imprint: Springer, 2011.
