Blackburn, Daniel (2015). "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.
nih.gov
pubmed.ncbi.nlm.nih.gov
Blackburn, Daniel (2015). "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.
semanticscholar.org
api.semanticscholar.org
Blackburn, Daniel (2015). "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.