Christoph Danne, and Petra Häusler. Heinz Nixdorf Symposium, volume 46 of Lecture Notes in Business Information Processing, page 118-129. Springer, (2010)
Christoph Danne, and Petra Häusler. Heinz Nixdorf Symposium, volume 46 of Lecture Notes in Business Information Processing, page 118-129. Springer, (2010)