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@inproceedings{abc,
author = {Daniela Florescu and Andreas Gr{\"u}nhagen and Donald Kossmann},
booktitle = {CIDR},
title = {XL: a platform for Web Services.},
url = {http://www-db.cs.wisc.edu/cidr/cidr2003/program/p8.pdf},
year = {2003}
}