Corrections to Appendix A of The XML Bible, XML Reference Material

p. 891: Mixed content models that are not pure #PCDATA should be suffixed by an asterisk. The section should read:

[51] Mixed ::= '(' S? '#PCDATA' (S? '|' S? Name)* S? ')*' | '(' S? '#PCDATA' S? ')'

Production [51] says that mixed content is either the literal (#PCDATA) (with allowances for optional whitespace) or a choice that includes the literal #PCDATA as its first content particle and is suffixed by an asterisk. These are some grammatical mixed-content models:
(#PCDATA)
( #PCDATA )
(#PCDATA | PERSON)*
( #PCDATA | PERSON )*
( #PCDATA | TITLE | JOURNAL | MONTH | YEAR | SERIES | VOLUME )*
These are ungrammatical mixed content models:
(PERSON | #PCDATA)*
(#PCDATA | PERSON)
(#PCDATA, TITLE, #PCDATA, JOURNAL, MONTH, YEAR, #PCDATA)*
(#PCDATA | (NAME, STREET, APT, CITY, STATE, ZIP))*