Jeffery, Shawn R. ; Franklin, Michael J. ; Halevy, Alon Y.:
Pay-as-you-go user feedback for dataspace systems.
In: Proceedings of the 2008 ACM SIGMOD international conference on Management of data.
New York, NY, USA
: ACM,
2008. - ISBN
978-1-60558-102-6,
S. 847--860