1. and (1977). Developmental fate of the somitic mesoderm in the chick embryo. In: Vertebrate Limb and Somite Morphogenesis, (eds. and ). Cambridge: Cambridge University Press, pp. 421-432.
2. (1977). The experimental analysis of chick limb bud development. In: Vertebrate Limb and Somite Morphogenesis, (eds. and ). Cambridge: Cambridge University Press, pp 1-24.
3. Positional Information in Chick Limb Morphogenesis
4. and (1968). Ectoderm-mesenchymal interactions in the origin of wing symmetry. In Epithelial-Mesenchymal Interactions, (eds and pp. 78-97. Baltimore: Williams and Wilkins.
5. Retinoic acid and chick limb bud development