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In the example below, a reference with the name excepteur is not named in the References list, since that reference is malformed. This causes a secondary error because the undefined reference is invoked in the References list:
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.<ref name=ipsum/> Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.<ref name=minim/> Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.<ref name=duis/> Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.<span style="color:black;background:yellow"><ref name=excepteur/></span> Curabitur pretium tincidunt lacus.
==References==
{{reflist|refs=
<ref name=duis>duis</ref>
<span style="color:black;background:yellow"><ref name=>excepteur</ref></span>
<ref name=ipsum>ipsum</ref>
<ref name=minim>minim</ref>
}}
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.[1] Ut enim ad minim veniam, quis nostrud exercitation ullamco laborious nisi ut aliquip ex ea commodo consequat.[2] Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.[3] Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.[4] Curabitur pretium tincidunt lacus.
References
Nested references defined with #tag:ref are used more than once in the reference list:
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.<ref name=ipsum/> Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.<ref name=minim/> Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.<ref name=duis group=nb/> Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.<ref name=excepteur group=nb/> Curabitur pretium tincidunt lacus.
==Notes==
{{reflist|group=nb|refs=
{{refn|duis<ref>Reference 1</ref>|name=duis|group=nb}}
{{refn|excepteur<ref>Reference 2</ref>|name=excepteur|group=nb}}
}}
==References==
{{reflist|refs=
<ref name=ipsum>ipsum</ref>
<ref name=minim>minim</ref>}}}
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.[1] Ut enim ad minim veniam, quis nostrud exercitation ullamco laborious nisi ut aliquip ex ea commodo consequat.[2] Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.[nb 1] Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.[nb 2] Curabitur pretium tincidunt lacus.
Notes
References