The temporal and spatial relationships between cortical contraction, sperm trail formation, and pronuclear migration in fertilizedXenopus eggs von Stewart-Savage, J., Grey, Robert D.

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A Balance Sheet on External Assistance: France in Africa von Grey, Robert D.

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Fertilization of investment-free Xenopus eggs von Stewart-Savage, J., Grey, Robert D.

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Formation and structure of the fertilization envelope in Xenopus laevis von Grey, Robert D., Wolf, Don P., Hedrick, Jerry L.

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The Soviet Presence in Africa: an Analysis of Goals von Grey, Robert D.

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LENINISM, THE SOVIET UNION, AND PARTY DEVELOPMENT IN CUBA AND ETHIOPIA von Grey, Robert D.

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The Cell Cycle Governs the Onset of Spherulation of Xenopus Eggs Fused by an Electric Field von STEWART‐SAVAGE, J., GREY, ROBERT D.

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A Freeze‐Fracture Study of the Cortex of Xenopus laevis Eggs von CHARBONNEAU, MICHEL, GREY, ROBERT D., BASKIN, RONALD J., THOMAS, DANIEL

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Soviet Public Opinion and the Gorbachev Reforms von Grey, Robert D., Jennisch, Lauri A., Tyler, Alanna S.

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Elevation of Alkaline Phosphatase Activity in the Intestine of the Chick Embryo by Actinomycin D von GREY, ROBERT D, MOOG, FLORENCE

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The onset of activation responsiveness during maturation coincides with the formation of the cortical endoplasmic reticulum in oocytes of Xenopus laevis von Charbonneau, Michel, Grey, Robert D.

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Democracy after Communism von Grey, Robert D.

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Eritrea: Even the Stones Are Burning von Grey, Robert D.

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Russia Transformed: Developing Popular Support for a New Regime von Grey, Robert D.

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DISTRIBUTION OF LEUCYL NAPHTHYLAMIDASE AND ALKALINE PHOSPHATASE ON THE VILLI OF THE CHICK DUODENUM von GREY, ROBERT D, LECOUNT, THOMAS S

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Membrane Junctions in Xenopus Eggs: Their Distribution Suggests a Role in Calcium Regulation von Gardiner, David M., Grey, Robert D.

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Capitalism with a Human Face: The Quest for a Middle Road in Russian Politics von Grey, Robert D.

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An electrical block is required to prevent polyspermy in eggs fertilized by natural mating of Xenopus laevis von Grey, Robert D., Bastiani, Michael J., Webb, Dennis J., Schertel, Eric R.

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Controversy over the fast, partial, temporary block to polyspermy in sea urchins: A reevaluation von Nuccitelli, Richard, Grey, Robert D.

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Ethiopia: Empire in Revolution. By Marina and David Ottaway. (New York: Africana Publishing Co., 1978. Pp. vi + 250. $22.50, cloth; $12.50, paper.) von Grey, Robert D.

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