D99A

REFERENCE

To specify a reference.

Segment structure

C506       REFERENCE                                          M
   1153    Reference qualifier                                M   an1..3
   1154    Reference number                                   C   an1..35
   1156    Line number                                        C   an1..6
   4000    Reference version number                           C   an1..35
   1060    Revision number                                    C   an1..6