Petros Efstathopoulos and Eddie Kohler. Manageable Fine-Grained Information Flow . In Proceedings of the 3rd ACM SIGOPS/EuroSys European Conference on Computer Systems 2008, Glasgow, UK, April 2008. paper.

Steve VanDeBogart, Petros Efstathopoulos, Maxwell Krohn, Cliff Frey, David Ziegler, Eddie Kohler, David Mazières, Frans Kaashoek, and Robert Morris. Labels and Event Processes in the Asbestos Operating System. ACM Transactions on Computer Systems 25(4), November 2007, pages 11:1-11:43.

Petros Efstathopoulos, Maxwell Krohn, Steve VanDeBogart, Cliff Frey, David Ziegler, Eddie Kohler, David Mazières, Frans Kaashoek, and Robert Morris. Labels and Event Processes in the Asbestos Operating System. In Proceedings of the 20th ACM Symposium on Operating Systems Principles, Brighton, UK, October 2005. ACM. paper.

Maxwell Krohn, Petros Efstathopoulos, Cliff Frey, Frans Kaashoek, Eddie Kohler, David Mazières, Robert Morris, Michelle Osborne, Steve VanDeBogart, and David Ziegler. Make Least Privilege a Right (Not a Privilege). In Proceedings of the 10th Workshop on Hot Topics in Operating Systems, Santa Fe, NM, June 2005. paper.

Petros Efstathopoulos, Mike Mammarella, Alex Warth. The Meta Google Maps "Hack". Web Information Management (UCLA, CS246), Fall 2005. paper.

Petros Efstathopoulos. Low-rate TCP-targeted Denial of Service Attack Defense. Advanced Computer Networks (UCLA, CS218), Fall 2003. paper.

Petros Efstathopoulos, Vassilis Pappas. SPAM : State Profiling and Analyzing Module - An approach to DoS attack detection. Advanced Operating Systems (UCLA, CS239), Fall 2002. report.
A not so important extension : Active-SPAM.

Petros Efstathopoulos. Design and Implementation of a Memory-Based Filesystem for a Cluster of Workstations. Diploma Thesis, National Technical University of Athens, Greece 2001. pdf (in greek).