@article{HaeckelHaensch, author = {H{\"a}ckel, Bj{\"o}rn and H{\"a}nsch, Florian}, title = {Managing an IT Portfolio on a Synchronised Level, or: The Costs of Partly Synchronised Investment Valuation}, series = {Journal of decision systems}, volume = {23}, journal = {Journal of decision systems}, number = {2014,4}, issn = {1246-0125}, doi = {10.1080/12460125.2014.946781}, pages = {388 -- 412}, language = {en} }