A roadmap for developing a revenue model for digital libraries - a case study for the digital mechanism and gear library.

Bernd Markscheffel Daniel Fischer A roadmap for developing a revenue model for digital libraries - a case study for the digital mechanism and gear library. 61-66 2007 ICDIM http://dx.doi.org/10.1109/ICDIM.2007.4444201 conf/icdim/2007 db/conf/icdim/icdim2007.html#MarkscheffelF07