«Russian Blue». Breed Profiles. The Cat Fanciers' Association. Arkivert fra originalen 15. oktober 2013. Besøkt 11. oktober 2013. «Many believe the Russian Blue is a natural breed originating from the Archangel Isles in northern Russia, where the long winters developed a cat with a dense, plush coat. Rumors also abound that the Russian Blue breed descended from the cats kept by the Russian Czars. Assuming the Russian Blue did migrate from northern Russia, it was likely via ship to Great Britain and northern Europe in the mid 1860s.»
«Russian Blue». Breed Profiles. The Cat Fanciers' Association. Arkivert fra originalen 15. oktober 2013. Besøkt 11. oktober 2013. «Many believe the Russian Blue is a natural breed originating from the Archangel Isles in northern Russia, where the long winters developed a cat with a dense, plush coat. Rumors also abound that the Russian Blue breed descended from the cats kept by the Russian Czars. Assuming the Russian Blue did migrate from northern Russia, it was likely via ship to Great Britain and northern Europe in the mid 1860s.»
