Template:Refname rules


 * Names are case-sensitive.
 * Names be purely numeric; the software will accept something like ":1" (which is punctuation plus a number), but it will ignore "1" (purely numeric). However, names like ":1" should be generally be avoided (see next bullet).
 * Names should have semantic value, so that they can be more easily distinguished from each other by human editors.
 * Names must be unique—you may not use the same name to define different groups or footnotes.
 * Please consider keeping reference names simple and restricted to the standard English alphabet and numerals. Failing that, including if spaces are used, the following technical restrictions become relevant:
 * Quotation marks are optional if the only characters used are letters,  , digits  , and the symbols  . That is, all printable ASCII characters except.
 * Inclusion of any other characters,, requires that the reference name be enclosed in quotes; for example,.
 * 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.
 * You may optionally provide reference names even when the reference name is not required. This makes later re-use of the sourced reference easier.