Template:Refname rules


 * Names are case-sensitive
 * Names may not be purely numeric
 * Names must be unique—you cannot use the same name to define different groups or footnotes
 * Quotation marks are optional if the only characters used are letters A–Z, a–z, digits 0–9, and the symbols.
 * Inclusion of any other characters,, requires that the reference name be enclosed in quotes:  (since not all later editors will know of this technical restriction, it is safest to always put quote marks around the reference name).
 * The quote marks must be the standard straight keyboard marks ; curly or other quotes will be parsed as part of the reference name.
 * Quote-enclosed reference names may not include a less-than sign or a double straight quote symbol . These may be escaped with   and , respectively.
 * Please consider keeping reference names simple and restricted to the standard English alphabet and numerals.
 * You may optionally provide names even when the name is not required. This makes later re-use of the sourced reference easier.