@InProceedings{PRW97,
author={Itzhak Parnafes and Ran Raz and Avi
Wigderson},
title={Direct product results and the GCD
problem, in old and new communication
models},
crossref={STOC29},
booktitle={Proceedings of the 29th STOC},
pages={363-372},
year={1997},
}