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