Yu, W.-P. & Rajasegaran, V. & Yew, K. & Loh, W.-L. & Tay, B-H. & Amemiya, C.T. & Brenner, S. & Venkatesh, B. (2008)
Elephant shark sequence reveals unique insights into the evolutionary history of vertebrate genes: A comparative analysis of the protocadherin cluster. Proceedings of the National Academy of Sciences of the United States of America, 105(10), 3819–3824
DOI: 10.1073/pnas.0800398105