Vienne, Florence Seeking the constant in what is transient: Karl Ernst von Baer's vision of organic formation. [electronic resource] - History and philosophy of the life sciences Mar 2015 - 34-49 p. digital Publication Type: Biography; Historical Article; Journal Article ISSN: 0391-9714 Standard No.: 10.1007/s40656-014-0057-3 doi Subjects--Topical Terms: Embryo, Mammalian--embryologyEmbryology--historyEmbryonic DevelopmentGermanyHistory, 19th CenturyReproductionRussiaSex Characteristics