Nikolay Mehandjiev Iain Duncan Stalker Martin Carpenter Recursive Construction and Evolution of Collaborative Business Processes. 573-584 2008 Business Process Management Workshops http://dx.doi.org/10.1007/978-3-642-00328-8_58 conf/bpm/2008w db/conf/bpm/bpmw2008.html#MehandjievSC08