SpringerLink (Online service) & Abramowicz, W. (2009). Business Information Systems: 12th International Conference, BIS 2009, Poznań, Poland, April 27-29, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer.
Chicago Style (17th ed.) CitationSpringerLink (Online service) and Witold Abramowicz. Business Information Systems: 12th International Conference, BIS 2009, Poznań, Poland, April 27-29, 2009. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2009.
MLA (8th ed.) CitationSpringerLink (Online service) and Witold Abramowicz. Business Information Systems: 12th International Conference, BIS 2009, Poznań, Poland, April 27-29, 2009. Proceedings. Springer Berlin Heidelberg : Imprint: Springer, 2009.
Warning: These citations may not always be 100% accurate.