6 papers:
ICGT-2010-Kahl #category theory #graph transformation- Amalgamating Pushout and Pullback Graph Transformation in Collagories (WK), pp. 362–378.
ICGT-2008-BauderonCL- Pullback Grammars Are Context-Free (MB, RC, OL), pp. 366–378.
ICALP-2003-Doberkat #bisimulation #category theory #probability- Semi-pullbacks and Bisimulations in Categories of Stochastic Relations (EED), pp. 996–1007.
FoSSaCS-1998-Klempien-Hinrichs #refinement- Net Refinement by Pullback Rewriting (RKH), pp. 189–202.
TAGT-1998-EhrigHLOPR #framework #graph #rule-based- Double-Pullback Graph Transitions: A Rule-Based Framework with Incomplete Information (HE, RH, ML, FO, JP, GR), pp. 85–102.
TAGT-1998-JacquetK #approach- Node Replacement in Hypergraphs: Translating NCE Rewriting into the Pullback Approach (HJ, RKH), pp. 117–130.