Daniel G. Blackburn (2014). "Evolution of vertebrate viviparity and specializations for fetal nutrition: A quantitative and qualitative analysis". Journal of Morphology. 276 (8): 961–990. doi:10.1002/jmor.20272. PMID24652663. S2CID549574.
Daniel G. Blackburn (2014). "Evolution of vertebrate viviparity and specializations for fetal nutrition: A quantitative and qualitative analysis". Journal of Morphology. 276 (8): 961–990. doi:10.1002/jmor.20272. PMID24652663. S2CID549574.
Daniel G. Blackburn (2014). "Evolution of vertebrate viviparity and specializations for fetal nutrition: A quantitative and qualitative analysis". Journal of Morphology. 276 (8): 961–990. doi:10.1002/jmor.20272. PMID24652663. S2CID549574.