@INPROCEEDINGS {DataQualityAbstractionandAggregationintheLEDATraitbase2004, author = "Stadler, Michael and Kunzmann, Dierk and Schlegelmilch, J├╝rgen and Sonnenschein, Michael", title = "Data Quality, Abstraction and Aggregation in the LEDA Traitbase", booktitle = "Editions du Tricorne", year = 2004, editor = "Philippe Minier, Alberto Susini", pages = "515-525", publisher = "Editions du Tricorne", note = "ISBN 28 29 30 275-3" }