Comment to Sharplaninac... and the variations
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Wolf's Breed profile is probably the most accurate complete summary of the breed and the breed types that you will find anywhere. I have a forum post "A Few Words about the Sarplaninac" in which I summarized some of the contradictory and misinformation I have been told about the breed based on my travels in Serbia and discussions and personal meetings with several people very knowledgeable about the breed. Some of the issues that are controversial and contradictory kind of parallel those of the CO. These would be two good places to start to get the Cliff Notes overview of things.