Zona pellucida surface of immature and in vitro matured mouse oocytes: Analysis by scanning electron microscopy - Calafell, J. M.; Nogués, C.; Ponsà, M.; Santaló, J.; Egozcue, J. (Springer, 1992)
http://dx.doi.org/10.1007/BF01203961
Keywords: WW-YZ