Carla Hurt; Arthur Anker; Nancy Knowlton (2008), "A Multilocus Test of Simultaneous Divergence Across the Isthmus of Panama Using Snapping Shrimp in the Genus Alpheus", Evolution, 63 (2): 514–530, doi:10.1111/j.1558-5646.2008.00566.x, PMID19154357
Nancy Knowlton (1993), "Divergence in Proteins, Mitochondrial DNA, and Reproductive Compatibility Across the Isthmus of Panama", Science, 260: 1629–1632, doi:10.1126/science.8503007
Nancy Knowlton; Lee A. Weigt (1998), "New dates and new rates for divergence across the Isthmus of Panama", Proc. R. Soc. Lond. B, 265: 2257–2263, doi:10.1098/rspb.1998.0568, PMC1689526
nih.gov
pubmed.ncbi.nlm.nih.gov
Carla Hurt; Arthur Anker; Nancy Knowlton (2008), "A Multilocus Test of Simultaneous Divergence Across the Isthmus of Panama Using Snapping Shrimp in the Genus Alpheus", Evolution, 63 (2): 514–530, doi:10.1111/j.1558-5646.2008.00566.x, PMID19154357
ncbi.nlm.nih.gov
Nancy Knowlton; Lee A. Weigt (1998), "New dates and new rates for divergence across the Isthmus of Panama", Proc. R. Soc. Lond. B, 265: 2257–2263, doi:10.1098/rspb.1998.0568, PMC1689526