Untersuchungen zur Validität von Raja maderensis Lowe, 1839, zur geographischen Variation von Raja straeleni Poll, 1951 und zum subgenerischen Status beider Arten (Pisces, Batoidei, Rajidae). Archiv für Fischereiwissenschaft, 22(3), 175–199
General remarks, explanation of terms and mode of presentation for Hypotremata, Pristidae, Torpedinidae, Rajidae, Chimaeridae, Rhinochimaeridae In Whitehead, P.J.P., Bauchot, M.–L., Hureau, J.C., Nielsen, J. & E. Tortonese (Eds.), Fishes of the North–Eastern Atlantic and the Mediterranean. Vol. 1. (pp. 151–155, 159–196, 212–218). Unesco, Paris
Le revêtement cutané des raies (Chondrichthyes, Elasmobranchii, Batoidea). I- Morphologie et arrangement des denticules cutanés. Annales des Sciences Naturelles – Zoologie et Biologie Animale, 17(2), 65–83
Survey of the variation of alar and malar thorns in skates: phylogenetic implications (Chondrichthyes: Rajoidei). Journal of Morphology, 228(2), 165–178
DOI: 10.1002/(SICI)1097-4687(199605)228:2<165::AID-JMOR5>3.0.CO;2-4
Marine fishes of the Azores. Annotated checklist and bibliography. A catalogue of the Azorean Marine Ichthyodiversity. Bulletin of the University of the Azores, Arquipelago–Ciências Biológicas e Marinhas, Supplement 1: xxvii, 1–244, fig. 1
Le revêtement cutané des raies (Chondrichthyes, Elasmobranchii, Batoidea). II. Morphologie et arrangement des tubercules cutanés. Annales des Sciences Naturelles – Zoologie et Biologie Animale, 19(3–4), 155–172
DOI: 10.1016/S0003-4339(99)80004-5
