@inproceedings{carreira05expressing,
	Author = {P. Carreira and H. Galhardas and J. Pereira and A. Lopes},
	Booktitle = {7th International Conference on Data Warehousing and Knowledge Discovery, DaWaK '05},
	Month = aug,
	Publisher = {Springer-Verlag},
	Series = {LNCS},
	Title = {{Data Mapper: An Operator for Expressing One-to-many Data Transformations}},
	Volume = 3589,
	Year = 2005}