TY  - RPRT
TI  - Changes in nucleolar ultrastructure during amphibian development.
AU  - J Jacob
PY  - 1969
DO  - 10.1016/0014-4827(69)90254-7
UR  - https://pubmed.ncbi.nlm.nih.gov/5776488/
ID  - 5776488
ER  -