R. W.  Murphy, Crawford, A. J., Bauer, A. M., Che, J., Donnellan, S. C., Fritz, U., Haddad, C. F. B., Nagy, Z. T., Poyarkov, N. A., Vences, M., Wang, W. -zhi, and Zhang, Y. -ping, ?Cold Code: the global initiative to DNA barcode amphibians and nonavian reptiles?, Molecular Ecology Resources, vol. 13, no. 2, pp. 161?167, 2013.