Services as a Paradigm of Computation. - Wolfgang Reisig; Jan Bretschneider; Dirk Fahland; Niels Lohmann; Peter Massuthe; Christian Stahl (Formal Methods and Hybrid Real-Time Systems, 2007)

Challenges in a Service-Oriented World. - Wolfgang Reisig; Karsten Wolf; Jan Bretschneider; Kathrin Kaschner; Niels Lohmann; Peter Massuthe; Christian Stahl (ERCIM News, 2007)

Deciding Substitutability of Services with Operating Guidelines. - Christian Stahl; Peter Massuthe; Jan Bretschneider (Trans. Petri Nets Other Model. Concurr., 2009)