21
Published 2008
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...

22
Published 2008
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...

23
Published 2008
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...

24
Published 2010
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...

25
Published 2010
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...

26
Published 2010
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...

27
Published 2010
Springer Berlin Heidelberg
...Lecture Notes in Business Information Processing...