The following, in order:

• <contrib-id> Contributor Identifier, zero or more

• Any combination of:

  • Contributor Naming Elements

    • <anonymous> Anonymous

    • <collab> Collaborative (Group) Author

    • <collab-alternatives> Collaboration Alternatives

    • <name> Name of Person

    • <name-alternatives> Name Alternatives

• <degrees> Degree(s), zero or more

• <role> Role or Function Title of Contributor, zero or one

• <on-behalf-of> On Behalf of, zero or one

• Any combination of:

  • <aff> Affiliation

  • <aff-alternatives> Affiliation Alternatives

• <address> Address/Contact Information, zero or more

• Linking Elements

  • <email> Email Address, zero or more

  • <ext-link> External Link, zero or more

  • <uri> Uniform Resource Identifier (URI), zero or more

• <bio> Biography, zero or one

• <author-comment> Author Comment, zero or one