--  ISO 12083, maintained by Electronic Publishing Special Interest 
    Group (EPSIG) --

PUBLIC "ISO 12083:1993//DTD Article//EN" "article.dtd"
PUBLIC "ISO 12083:1993//DTD Book//EN" "book.dtd"
PUBLIC "ISO 12083:1993//DTD Mathematics//EN" "maths.dtd"
PUBLIC "ISO 12083:1993//DTD Serial//EN" "serial.dtd"