Stolte, H. & Galaske, R.G. & Eisenbach, G.M. & Lechene, C. & Schmidt-Nielsen, B. & Boylan, J.W. (1977)
Renal Tubule Ion Transport and Collecting Duct Function in the Elasmobranch Little Skate, Raja erinacea. Journal of Experimental Zoology, 199(3), 403–410
DOI: 10.1002/jez.1401990314

Boylan, J.W. (1972)
A model for passive urea reabsorption in the elasmobranch kidney. Comparative Biochemistry and Physiology – Part A, Physiology, 42(1), 27–28
DOI: 10.1016/0300-9629(72)90361-1

Boylan, J.W. (1967)
Gill permeability in Squalus acanthias. In P.W. Gilbert, R.F. Mathewson, & D.P. Rall, (Eds.), Sharks, skates and rays. (pp. 197–206). John Hopkins Press, Baltimore