| Citation | Colwin, L.H. and A.L. Colwin 1960 Formaton of Sperm Entry Holes in the Vitelline Membrane of Hydroides hexagonus (Annelida) and Evidence of their Lytic Origin. The Journal of Cell Biology, Vol 7,315-320, 1960. |
| DOI / ISBN | |
| Paper URL | http://intl.jcb.org/cgi/content/abstract/7/2/315 |
| Ref. No. | 1011 |
| Language | English |
| Usage | not used yet |
| Remarks | |
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