"Opfinger Wörterbuch", the dictionary of the Alemannic dialect of Freiburg-Opfingen by <a href="//commons.wikimedia.org/wiki/User:J%C3%BCrgen_Sutter" title="User:Jürgen Sutter">Jürgen Sutter</a><br>
Schillinger Verlag, Freiburg im Breisgau 2008
<a href="//commons.wikimedia.org/wiki/User:J%C3%BCrgen_Sutter" title="User:Jürgen Sutter">Jürgen Sutter</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>