<classSpec ident="att.bifoliumSurfaces" module="MEI.header" type="atts">
<desc>Attributes that link a bifolium element with a
<gi scheme="MEI">surface</gi>
element.</desc>
<attList org="group">
<attDef ident="outer.recto" usage="opt">
<desc>A reference to a
<gi scheme="MEI">surface</gi> element positioned on the outer recto
side of a (folded) sheet.</desc>
</attDef>
<attDef ident="inner.verso" usage="opt">
<desc>A reference to a
<gi scheme="MEI">surface</gi> element positioned on the inner verso
side of a (folded) sheet.</desc>
</attDef>
<attDef ident="inner.recto" usage="opt">
<desc>A reference to a
<gi scheme="MEI">surface</gi> element positioned on the inner recto
side of a (folded) sheet.</desc>
</attDef>
<attDef ident="outer.verso" usage="opt">
<desc>A reference to a
<gi scheme="MEI">surface</gi> element positioned on the outer verso
side of a (folded) sheet.</desc>
</attDef>
</attList>
</classSpec>