+ 2.0 3.0 3.2 4.0 1.0 2.0 3.0 4.0   1.0 2.0 3.0 4.0   1.0 2.0       1.0 2.1       0.9

<au> or <author> container start tag required end tag required Sandia Referenc

"The <AU> element indicates the name of an author." (W3)
Example:
<author>example of the use of </author>
<au> example of the use of </au>

class= + 2.0 3.0 3.2 4.0
dir=
	"ltr"
	"rtl"
id= + 2.0 3.0 3.2 4.0
lang= + 2.0 3.0 3.2 4.0