Structure Theorem and Strict Alternation Hierarchy for FO2 on Words. - Philipp Weis; Neil Immerman (Circuits, Logic, and Games, 2006)

Structure Theorem and Strict Alternation Hierarchy for FO^2 on Words. - Philipp Weis; Neil Immerman (Electron. Colloquium Comput. Complex., 2007)

Resisting structural re-identification in anonymized social networks. - Michael Hay; Gerome Miklau; David D. Jensen; Donald F. Towsley; Philipp Weis (Proc. VLDB Endow., 2008)