The Proceedings of STACS'11 are published as Volume 9 of the series LIPIcs. 

"LIPIcs: Leibniz International Proceedings in Informatics" is a new series of high-quality conference proceedings across all fields in informatics established in cooperation with Schloss Dagstuhl. All LIPIcs volumes are published

- open access (OA), i.e., they are accessible free of charge,

- online (as PDFs), and

- under a Creative Commons license.

LIPIcs publications are indexed by DBLP and submitted to Thomson Reuters's CPCI (Conference Proceedings Citation Index).

Find more details about Dagstuhl's LIPIcs series at: www.dagstuhl.de/lipics/