Forlano, P.M. & Maruska, K.P. & Sower, S.A. & King, J.A. & Tricas, T.C. (2000)
Differential distribution of gonadotropin-releasing hormone-immunoreactive neurons in the stingray brain: functional and evolutionary considerations. General and Comparative Endocrinology, 118(2), 226–248
DOI: 10.1006/gcen.2000.7467

d'Antonio, M. & Vallarino, M. & Lovejoy, D.A. & Vandesande, F. & King, J.A. & Pierantoni, R. & Peter, R.E. (1995)
Nature and distribution of gonadotropin-releasing hormone (GnRH) in the brain, and GnRH and GnRH binding activity in serum of the spotted dogfish Scyliorhinus canicula. General and Comparative Endocrinology, 98(1), 35–49
DOI: 10.1006/gcen.1995.1042

Lovejoy, D.A. & King, J.A. & Sherwood, N.M. & Peter, R.E. (1993)
Identification of gonadotropin-releasing hormone and associated binding substances in the blood serum of a holocephalan (Hydrolagus colliei). Peptides, 14(6), 1237–1243
DOI: 10.1016/0196-9781(93)90182-G

King, J.A. & Steneveld, A.A. & Millar, R.P. & Fasano, S. & Romano, G. & Spagnuolo, A. & Zanetti, L. & Pierantoni, R. (1992)
Gonadotropin-releasing hormone in elasmobranch (electric ray, Torpedo marmorata) brain and plasma: Chromatographic and immunological evidence for chicken GnRH II and novel molecular forms. Peptides, 13(1), 27–35
DOI: 10.1016/0196-9781(92)90136-Q

Powell, R.C. & Millar, R.P. & King, J.A. (1986)
Diverse molecular forms of gonadotropin-releasing hormone in an elasmobranch and a teleost fish. General and Comparative Endocrinology, 63(1), 77–85
DOI: 10.1016/0016-6480(86)90184-X