1. Naumann, F. Quality-Driven Query Answering for Integrated Information Systems, Springer-Verlag, New York (2002).
2. Ibid, p. 16.
3. Wang, R. Y., Strong, Dm., Kahn, B. K. And Lee, Y. W. An information quality assessment methodology. In: Proceedings of the International Conference on Information Quality (IQ), 258--265, Cambridge, MA (1999).
4. Batini, C., Scannapieca, M. Data quality: concepts, methodologies and techniques. Springer Berlin Heidelberg, New York (2006), p. 164.
5. Ibid, p. 172.