Citation: Je. Frick et Ee. Ruppert, PRIMORDIAL GERM-CELLS AND OOCYTES OF BRANCHIOSTOMA-VIRGINIAE (CEPHALOCHORDATA, ACRANIA) ARE FLAGELLATED EPITHELIAL-CELLS - RELATIONSHIP BETWEEN EPITHELIAL AND PRIMARY EGG POLARITY, Zygote, 5(2), 1997, pp. 139-151
Citation: Je. Frick et al., MORPHOLOGY OF THE OVOTESTIS OF SYNAPTULA-HYDRIFORMIS (HOLOTHUROIDEA, APODA) - AN EVOLUTIONARY MODEL OF OOGENESIS AND THE ORIGIN OF EGG POLARITY IN ECHINODERMS, Invertebrate biology., 115(1), 1996, pp. 46-66
Citation: Ee. Ruppert, MORPHOLOGY OF HATSCHEK NEPHRIDIUM IN LARVAL AND JUVENILE STAGES OF BRANCHIOSTOMA-VIRGINIAE (CEPHALOCHORDATA), Israel Journal of Zoology, 42, 1996, pp. 161-182
Citation: Ee. Ruppert et Me. Rice, FUNCTIONAL-ORGANIZATION OF DERMAL CELOMIC CANALS IN SIPUNCULUS-NUDUS (SIPUNCULA) WITH A DISCUSSION OF RESPIRATORY DESIGNS IN SIPUNCULANS, Invertebrate biology., 114(1), 1995, pp. 51-63
Citation: Rb. Emlet et Ee. Ruppert, INTRODUCTION TO THE SYMPOSIUM - EVOLUTIONARY MORPHOLOGY OF MARINE INVERTEBRATE LARVAE AND JUVENILES, American zoologist, 34(4), 1994, pp. 481-483
Citation: Ca. Byrum et Ee. Ruppert, THE ULTRASTRUCTURE AND FUNCTIONAL-MORPHOLOGY OF A CAPTACULUM IN GRAPTACME CALAMUS (MOLLUSCA, SCAPHOPODA), Acta Zoologica, 75(1), 1994, pp. 37-46
Citation: Ej. Balser et al., ULTRASTRUCTURE OF THE COELOMS OF AURICULARIA LARVAE (HOLOTHUROIDEA, ECHINODERMATA) - EVIDENCE FOR THE PRESENCE OF AN AXOCOEL, The Biological bulletin, 185(1), 1993, pp. 86-96
Citation: Ej. Balser et Ee. Ruppert, ULTRASTRUCTURE OF AXIAL VASCULAR AND CELOMIC ORGANS IN COMASTERID FEATHERSTARS (ECHINODERMATA, CRINOIDEA), Acta Zoologica, 74(2), 1993, pp. 87-101