Studies in the development of frog hybrids. I. Embryonic development in the cross Rana pipiens ♀ × Rana sylvatica ♂

Embryonic Development and Induction

Annals of the Entomological Society of America · 1939 · 1.1K citations · Full text

Life Sciences, Biology, Developmental Biology +5

BIOCHEMISTRY AND MORPHOGENESIS

The Medical Journal of Australia · 1943 · 767 citations

Embryonic Development and Induction

Hans Speman · The American Journal of the Medical Sciences · 1938 · 527 citations

Life Sciences, Biology, Developmental Biology +5

A study of the mechanics of gastrulation

Johannes Holtfreter · Journal of Experimental Zoology · 1944 · 354 citations

Life Sciences, Biology, Zoology +6

A study of the mechanics of gastrulation. Part I

Johannes Holtfreter · Journal of Experimental Zoology · 1943 · 301 citations

Life Sciences, Physiology, Gastrulation +6