Bower, MA, Campana, Michael G., Whitten, Mark, Edwards, CJ, Jones, H., Barrett, E., Cassidy, R., Nisbet, RER, Hill, EW, and Howe, CJ. 2011. "The cosmopolitan maternal heritage of the Thoroughbred racehorse breed shows a significant contribution from British and Irish native mares." Biology letters, 7, (2) 316–320.