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    La vitellogenesi inArbacia lixula eSphaerechinus granularis (Echin. Echin.)

    The researches carried out both under the light and electron microscopes permitted us to ascertain that, in EchinodermataArbacia lixula andSphaerechinus granularis, yolk globules form by aggregation of ribonucleo...

    Antonina Donato Celi, Loredana d'Este, Diana Teti in Experientia (1967)