Afzelius, B A <br/><br/>
Ultrastructure of species-foreign spermatozoa after penetrating the sea urchin oocyte.  [electronic resource] 

 -  Acta embryologiae experimentalis  1972 
 - 123-33 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0065-1184 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Bivalvia<br/>Fertilization<br/>Male<br/>Platyhelminths<br/>Sea Urchins<br/>Species Specificity<br/>Spermatozoa--cytology