P. Grünbacher, S. Köszegi, S. Biffl:
"Stakeholder Value Proposition Elicitation and Reconciliation";
in: "Value-Based Software Engineering", Springer, Berlin Heidelberg, 2005, ISBN: 3-540-25993-7, 133 - 154.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05936458