Review rating

An optional ‘star rating’ awarded as part of a review of the publication. Mandatory within an occurrence of the <ReviewRating> composite, and non-repeating.

Format	Positive real number, with explicit decimal point when required, or zero, as appropriate for the limit specified in <RatingLimit>. Suggested maximum length 7 characters
ReferenceName	<Rating>
ShortTag	<x525>
Cardinality	1
Example	4.5