STRASSMANN, E O Parthenogenetic development of the ovum as observed by vital staining. [electronic resource] - American journal of obstetrics and gynecology Aug 1949 - 237-45 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/0002-9378(49)90376-2 doi Subjects--Topical Terms: OvumStaining and Labeling