1. Homeobox genes in vertebrate evolution;Holland;Bioessays,1992
2. Chordate structure and function;Allyn,1971
3. Romer Alfred Sherwood, Parsons Thomas S. The vertebrate body. 6th ed. Saunders College Publishing–CBS Publishing Japan Ltd. 1986. p. 480.
4. Comparative anatomy of the vertebrates;George,1978
5. Mutations in human TBX5 [corrected] cause limb and cardiac malformation in Holt-Oram syndrome;Basson;Nat Genet,1997