DTD para o project record

<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT pr (meta, workteam, abstract, deliverables) >
<!ELEMENT meta (keyname, title, subtitle?, bdate, edate, supervisor) >

<!ELEMENT keyname (#PCDATA) >
<!ELEMENT title (#PCDATA) >
<!ELEMENT subtitle (#PCDATA) >
<!ELEMENT bdate (#PCDATA) >
<!ELEMENT edate (#PCDATA) >

<!ELEMENT supervisor (name, webpage) >
<!ELEMENT name (#PCDATA) >
<!ELEMENT webpage (#PCDATA) >

<!ELEMENT workteam (member+) >
<!ELEMENT member (name, email, ident, photo?) >
<!ELEMENT email (#PCDATA) >
<!ELEMENT ident (#PCDATA) >
<!ELEMENT photo EMPTY >
<!ATTLIST photo
            path CDATA #REQUIRED>

<!ELEMENT abstract (p+) >
<!ELEMENT p (#PCDATA|b|i|xref|acronym)* >
<!ELEMENT b (#PCDATA|i)* >
<!ELEMENT i (#PCDATA|b)* >
<!ELEMENT acronym (#PCDATA) >
<!ELEMENT xref (#PCDATA) >
<!ATTLIST xref
            url CDATA #REQUIRED>

<!ELEMENT deliverables (deliverable+) >
<!ELEMENT deliverable (#PCDATA) >
<!ATTLIST deliverable
            url CDATA #REQUIRED>