TY - RPRT TI - Pattern of activity of nucleolus organizers during spermatogenesis in mammals as analyzed by silver-staining. AU - F J Hofgärtner AU - M Schmid AU - W Krone AU - M T Zenzes AU - W Engel PY - 1979 DO - 10.1007/bf00292823 UR - https://pubmed.ncbi.nlm.nih.gov/85513/ ID - 85513 ER -