DTD Files to accompany Gutzman and Tryka's JATS-Con paper

• NISO-supmat-extension-rec0.dtd
• NISO-supmatcustom-classes.ent
• NISO-supmatcustom-elements.ent
• NISO-supmatcustom-mixes.ent
• NISO-supmatcustom-models.ent
• NISO-supmatcustom-modules.ent

OR - a zip file will all the files above