%0 Journal Article %T Crucial stages of embryogenesis of Rana arvalis: Part 3. Modularity or developmental integrity %A Severtsova, E. %A Severtsov, A. %J Russian Journal of Developmental Biology %V 44 %N 5 %P 273-278 %@ 1062-3604 %D 2013-09-15 %I Springer US %~ DeepDyve