See attribution
( #pcdata
|
em |
strong |
quote |
code |
kbd |
cite |
m |
angle |
foreign |
funcname |
ref |
docxref |
webref |
url |
mequation |
meqnarray) *
attribution |_(#PCDATA | |__em | |__strong | |__quote | |__code | |__kbd | |__cite | |__m | |__angle | |__foreign | |__funcname | |__ref | |__docxref | |__webref | |__url | |__mequation | |__meqnarray)*