Localization and structure of nucleolar organizers in the oocyte during meiotic prophase I A. STAHL, C. MIRRE, Michèle HARTUNG, B. KNIBIEHLER, A.NAVARRO, Anne de LANVERSIN and C. MORETTI Ann. Biol. anim. Bioch. Biophys., 18 2B (1978) 399-408 DOI: 10.1051/rnd:19780310