"{{ref}} example{{ref|reference1}}" — Links to a citation in the Reference section labeled "reference1".
"Deprecated {{ref num}} example{{ref num|reference1|1}}" — Links to a citation in the Reference section labeled "reference1", but marked in the text with the number "1" instead of an automatically generated number. NOTE: {{ref num}} is deprecated. {{ref label}} should be used instead.
"{{ref label}} example{{ref label|example.com|2|none}}" — Links to a citation in the Reference section labeled "example.com". Text is marked with the number "2".
For two links to the same footnote labeled "example.com", you would:
"{{ref harvard}} example {{ref harvard|lastexample.com|Jones 1999|none}}" — Links to a citation in the Reference section labeled "lastexample.comnone", and marked in the text with (Jones 1999).
"{{ref harv}} example {{ref harv|lastexample.com|Jones 1999|none}}" — Links to a citation in the Reference section labeled "lastexample.comnone", and marked in the text with (Jones 1999).
"{{ref harvard}} example {{ref harvard|finalexample.com|Smith 2000|a}}(a)"
"{{ref harv}} example {{ref harv|finalexample.com|Smith 2000|a}}(a)"
"{{ref harvard}} example {{ref harvard|finalexample.com|Smith 2000|b}}(b)"
"{{ref harv}} example {{ref harv|finalexample.com|Smith 2000|b}}(b)"
Tags attached to links in References or Footnote section:
"#{{note|reference1}} example of {{note}}" — In References section, citation labeled "reference1".
"#{{note label|example.com|2|none}}"— In References section, citation labeled "example.comnone". Creates backlink to matching {{ref label}} entry in the text labeled "example.comnone".
Now, if you have two links to the same footnote labeled "example.com", you would do:
"#{{note label|example.com|3|a}}{{note label|example.com|3|b}} example of {{note label}}"
"{{note label|nextexample.com|4|4}} example of {{note label}}"
"{{note label|lastexample.com|Jones 1999|none}}Jones (1999) {{note label}}" -- Note that when the 3rd unnamed parameter is specified as "none", the ^ symbol is rendered for the backlink.