Delegation Assistance. - Achim D. Brucker; Helmut Petritsch; Andreas Schaad (POLICY, 2009)

Extending access control models with break-glass. - Achim D. Brucker; Helmut Petritsch (SACMAT, 2009)

Idea: Efficient Evaluation of Access Control Constraints. - Achim D. Brucker; Helmut Petritsch (ESSoS, 2010)

Attribute-Based Encryption with Break-Glass. - Achim D. Brucker; Helmut Petritsch; Stefan G. Weber (WISTP, 2010)

A Framework for Managing and Analyzing Changes of Security Policies. - Achim D. Brucker; Helmut Petritsch (POLICY, 2011)

Break-Glass - Handling Exceptional Situations in Access Control - Helmut Petritsch (Springer, 2014)