Implementation Independent Profiling of SDL Specifications. - Peter Langendörfer; Martin Lehmann 001 (Software Engineering, 2005)

Efficient Protection of Mobile Devices by Cross Layer Interaction of Firewall Approaches. - Peter Langendörfer; Martin Lehmann 001; Krzysztof Piotrowski (WWIC, 2006)

Crosslayer firewall interaction as a means to provide effective and efficient protection at mobile devices. - Peter Langendörfer; Krzysztof Piotrowski; Steffen Peter; Martin Lehmann 001 (Comput. Commun., 2007)