Wolf, R.(1969). Kinematics and ultrastructure of plasmic factor regions in the egg of Wachtliella persicariae L. (Diptera) Kinematik und Feinstruktur plasmatischer Faktorenbereiche des Eies vonWachtliella persicariae L. (Diptera) : II. The behaviour of ooplasmic partial systems after centrifugation of eggs in the stage of four cleavage nuclei II. Teil: Das Verhalten ooplasmatischer Teilsysteme nach Zentrifugierung im 4-Kern-Stadium: II. The behaviour of ooplasmic partial systems after centrifugation of eggs in the stage of four cleavage nuclei. Wilhelm Roux' Archiv f�r Entwicklungsmechanik der Organismen, 163(1), 40-80. doi:10.1007/bf00576986