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
 * Quotes are optional if the only characters used are letters A–Z, a–z, digits 0–9 and the symbols
 * Inclusion of any other characters including spaces requires that the name be enclosed in straight quotes (")
 * Quote-enclosed names may not include a less-than sign (<) or a quote symbol (")


 * Please consider keeping names simple and restricted to the standard English alphabet and numerals.
 * You may optionally provide names even when the name is not required.