Khác biệt giữa các bản “Bò rừng châu Âu”

* [http://serendip.brynmawr.edu/biology/b103/f05/web3/mmichalak.html Breeding Back the Aurochs] 2005, web-paper by student Magdalena Michalak at [[Bryn Mawr College]], near [[Pennsylvania]], [[Philadelphia]].
 
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