Alvarez, M.F. & Aragort, W. & Leiro, J.M. & Sanmartín, M.L. (2006)
Macroparasites of five species of ray (genus Raja) on the northwest coast of Spain. Diseases of Aquatic Organisms, 70(1–2), 93–100
DOI: 10.3354/dao070093

Aragort, W. & Alvarez, M.F. & Leiro, J.L. & Sanmartin, M.L. (2005)
Blood protozoans in elasmobranchs of the family Rajidae from Galicia (NW Spain). Diseases of Aquatic Organisms, 65(1), 63–68
DOI: 10.3354/dao065063

Sanmartín, M.L. & Alvarez, M.F. & Peris, D. & Iglesias, R. & Leiro, J. (2000)
Parasite community study of the undulate ray Raja undulata in the Ría of Muros (Galicia, northwest Spain). Aquaculture, 184(3–4), 189–201
DOI: 10.1016/S0044-8486(99)00332-4