modificationRecord
modificationRecord — To associate a reference single letter with a modification
    event
Attributes
- 
modID
 
	A single letter used to identify all modified data associated
	with this modification record.
      
- 
date
 The date of the modification, in ISO 8601 (YYYY-MM-DD) format.
- 
refID
 (optional) A reference to a predefined document that describes the
      reason for this modification.
Description
      A modificationRecord associates a single letter (such as
      modification "A") with modification author(s), address, and any
      optional external reference documents, in keeping with the AIAA
      draft standard.