<\body> If you are familiar with , , Html, Xml, Sgml, Mathml, Pdf, Rtf, or any other frequently used data format, please consider contributing to writing good converters for one or more of these formats. Writing a specific converter for Pdf should not be very difficult, by adapting the file . Converters for other formats may be more complicated to write, and might sometimes require a closer collaboration with the main authors. In |../../../devel/format/format.en.tm> you will find details about the data format and in |../../../devel/source/conversions.en.tm> we give some suggestions which might be helpful for these projects. <\initial> <\collection> <\references> <\collection> |?>> |?>> |?>> |?>> |?>> |?>> |?>> |?>> |?>> |?>>