We received your submission "". However, we cannot easily process the file you submitted because it is in ".doc" format. Could you please ressubmit the paper in Postscript, as specified in the instructions? If you have difficulties in making the conversion, we could try to do it ourselves. However that would be a non-trivial hassle, since our installation is Unix based, and ".doc" files can be read only by Microsoft Word (which is avaliable only on a few shared machines). Please respond as soon as possible. We cannot guarantee that your submission will be considered if we cannot obtain the Postscript file within the next day or two. We'll be looking forward to your reply. Thanks for contributing to SIBGRAPI'99! --stolfi ---------------------------------------------------------------------- Jorge Stolfi Program Committee Chair - SIBGRAPI'99 http://www.dcc.unicamp.br/~stolfi/ http://www.dca.fee.unicamp.br/sibgrapi99/