Harada, Y., Akasaka, K., Shimada, H., Peterson, K. J., Davidson, E. H. and Satoh, N. (1996). Spatial expression of a forkhead homologue in the sea urchin embryo. Mech. Dev. 60 (2): 163-73
Kaufmann, E. and Knochel, W. (1996). Five years on the wings of fork head. Mech. Dev. 57 (1): 3-20
Sasaki, H. and Hogan, B. L. (1993). Differential expression of multiple fork head related genes during gastrulation and axial pattern formation in the mouse embryo. Development 118 (1): 47-59