XMI12 — 3.6.5 Attribute Specification

3) In "3.6.5 Attribute Specification" on site 3.17.
There is:
<!ELEMENT a EMPTY >
<!ATTLIST c.a xmi.value (enum1 | enum2 | .) #REQUIRED >

Should be:
<!ELEMENT c.a EMPTY >
<!ATTLIST c.a xmi.value (enum1 | enum2 | .) #REQUIRED >

The same error repeated on next site, where should be:
<!ELEMENT c.a1 (#PCDATA | XMI.reference) *>
<!ELEMENT c.a2 EMPTY >
<!ATTLIST c.a2 xmi.value (true | false) #REQUIRED >

The same error repeated on bottom direct before note, where should be:
<!ELEMENT c.a EMPTY >
<!ATTLIST c.a xmi.value (enum1 | enum2 | .) #REQUIRED d >