Martin Treiber Hong Linh Truong Schahram Dustdar SOAF - Design and Implementation of a Service-Enriched Social Network. 379-393 2009 ICWE http://dx.doi.org/10.1007/978-3-642-02818-2_31 conf/icwe/2009 db/conf/icwe/icwe2009.html#TreiberTD09