[CONFIRMATION, BY MEANS OF GRAFTS, OF THE ROLE PLAYED BY THE DORSAL CORD AND PRIMARY URETERS IN THE ORGANOGENESIS OF THE GONAD OF THE COMMON TOAD (BUFO BUFO L.)]
[CONFIRMATION, BY MEANS OF GRAFTS, OF THE ROLE PLAYED BY THE DORSAL CORD AND PRIMARY URETERS IN THE ORGANOGENESIS OF THE GONAD OF THE COMMON TOAD (BUFO BUFO L.)](English)