A virtually concatenated group is typically referred to by the notation -v, where  is VC-4, VC-3, VC-12 or VC-11 and X is the number of members in the group.
A nearly assembled group is frequently represented by the notation -v, where  corresponds to VC-4, VC-3, VC-12, or VC-11, and X indicates the number of members in the group.