Changes
==References==
{{Ref|Brandenburgh 2009}}
{{Ref|Dürrich & Menzel 1847}}
{{Ref|Guðjónsson 1962}}
{{Ref|Lehmann-Filhés 1896}}
{{Ref|Oliver 2012}}
{{Ref|Owen-Crocker 2004}}
{{Ref|Scheffel 1886}}
{{Ref|Walton 1989}}
<HarvardReferences />
[[Category:Accessories]]