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Ontogenetic testicular development and spermatogenesis in rays: the Cownose Ray, Rhinoptera bonasus, as a model. Environmental Biology of Fishes, 97(9), 1013–1029
DOI: 10.1007/s10641-014-0267-2
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Seasonal Changes in Shark Testicular Structure and Spermatogenesis. Journal of Experimental Zoology, 261, 173–184