Popovici, Conchonaud, Birnbaum et al.: "Functional phylogeny relates LET-756 to fibroblast growth factor 9." in: The Journal of biological chemistry, Vol. 279, Issue 38, pp. 40146-52, 2004 (PubMed).
Cousin, Billotte, Chaubert et al.: "Physical map of 17p13 and the genes adjacent to p53." in: Genomics, Vol. 63, Issue 1, pp. 60-8, 2000 (PubMed).
Verdier, Mattei, Lovec et al.: "Chromosomal mapping of two novel human FGF genes, FGF11 and FGF12." in: Genomics, Vol. 40, Issue 1, pp. 151-4, 1997 (PubMed).
Smallwood, Munoz-Sanjuan, Tong et al.: "Fibroblast growth factor (FGF) homologous factors: new members of the FGF family implicated in nervous system development." in: Proceedings of the National Academy of Sciences of the United States of America, Vol. 93, Issue 18, pp. 9850-7, 1996 (PubMed).