Fisher, R.A. & Call, G.C. & Mcdowell, J.R. (2014)
Reproductive variations in cownose rays (Rhinoptera bonasus) from Chesapeake Bay. Environmental Biology of Fishes, 97(9), 1031–1038
DOI: 10.1007/s10641-014-0297-9

Fisher, R.A. & Call, G.C. & Grubbs, R.D. (2013)
Age, Growth, and Reproductive Biology of Cownose Rays in Chesapeake Bay. Marine and Coastal Fisheries, 5(1), 224–235
DOI: 10.1080/19425120.2013.812587

Fisher, R.A. & Call, G.C. & Grubbs, R.D. (2011)
Cownose Ray (Rhinoptera bonasus) Predation Relative to Bivalve Ontogeny. Journal of Shellfish Research, 30(1), 187–196
DOI: 10.2983/035.030.012