Stephan Frohnhoff Thomas Engeroff Field Study: Influence of Different Specification Formats on the Use Case Point Method. 62-75 2008 IWSM/Metrikon/Mensura http://dx.doi.org/10.1007/978-3-540-89403-2_6 conf/iwsm/2008 db/conf/iwsm/iwsm2008.html#FrohnhoffE08