JACOB G. Sivak

Refractive plasticity of the developing chick eye

E. Irving, M. Callender, J. Sivak, 1992, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

Mechanisms of accommodation in the bird eye

J. Sivak, B. Levy, JACOB G. Sivak, 1980, Journal of comparative physiology.

Chick eye optics: zero to fourteen days

E. Irving, J. Sivak, M. Callender, 1996, Journal of Comparative Physiology A.