Die Anatomie des Frosches. – Abtheilung 1: Knochen- und Muskellehre (1864)
<bdi><a href="https://en.wikipedia.org/wiki/en:Alexander_Ecker" class="extiw" title="w:en:Alexander Ecker"><span title="German anthropologist (1816-1887)">Alexander Ecker</span></a>
</bdi>
1864
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