Dolganov, V.N. (1985)
Raja (Rajella) kukujevi sp. n. (Elasmobranchii, Rajidae) from the North-Atlantic Ridge. (in russian) Zoologichesky Zhurnal, 64(2), 304–307

Mould, B. (1997)
Classification of the recent Elasmobranchii. Copyright Brian Mould 1997

Clarke, M.W. (2000)
Records of deep water chondrichthyan fish caught on long-line in the Rockall Trough. Journal of the Marine Biological Association of the United Kingdom, 80(2), 377–378
DOI: 10.1017/S0025315499002040

Compagno, L.J.V. (2005)
Checklist of living Chondrichthyes. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 503–548). Science Publishers, Endfield, USA

Valsecchi, E. & Pasolini, P. & Bertozzi, M. & Garoia, F. & Ungaro, N. & Vacchi, M. & Sabelli, B. & Tinti, F. (2005)
Rapid Miocene-Pliocene dispersal and evolution of Mediterranean rajid fauna as inferred by mitochondrial gene variation. Journal of Evolutionary Biology, 18(2), 436–446
DOI: 10.1111/j.1420-9101.2004.00829.x

George, M.R. & Zidowitz, H. (2006)
Checkliste der europäischen Knorpelfischarten mit wissenschaftlichen und deutschen Namen. Zeitschrift für Fischkunde, 8(1/2), 71–81

Kyne, P.M. & Simpfendorfer, C.A. (2007)
A Collation and summarization of available data on deepwater Chondrichthyans: Biodiversity, life history and fisheries. Biodiversity, Life History and Fisheries IUCN SSC Shark Specialist Group for the Marine Conservation Biology Institute, 1–137.

Orlov, A.M. (2009)
Rajella kukujevi IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org

Séret, B. (2010)
Guide des requins, des raies et des chimères des pêches françaises. Direction de la Pêche Maritime et de L'aquaculture, 154 pp

Orlov, A.M. & Cotton, C.F. (2011)
Sexually Dimorphic Morphological Characters in Five North Atlantic Deepwater Skates (Chondrichthyes: Rajiformes) Journal of Marine Biology, 2011, Article 842821
DOI: 10.1155/2011/842821

Orlov, A.M. & Cotton, C.F. & Shevernitsky, D.A. (2011)
Sexual dimorphism of external morphological characters in some deepwater skates (Rajidae, Rajiformes, Chondrichthyes) of the North Atlantic. Moscow University Biological Sciences Bulletin, 65(1), 40–44
DOI: 10.3103/S0096392510010086

Rodríguez-Cabello, C. & Sánchez, F. & Serrano, A. & Pérez, M. (2011)
New records of deep water chondrichthyan species caught in Galicia and the Cantabrian Sea (southern Bay of Biscay) [Abstract]. (Poster) In Programme Booklet of The 15th Annual Scientific Conference of the European Elasmobranch Association, Berlin, 29.10.–30.10.2011

Naylor, G.J.P. & Caira, J.N. & Jensen, K. & Rosana, K.A.M. & White, W.T. & Last, P.R. (2012)
A DNA sequence based approach to the identification of shark and ray species and its implications for global elasmobranch diversity and parasitology. Bulletin of the American Museum of Natural History, 367, 1–262

Rodríguez-Cabello, C. & Arronte, J.C. & Sánchez, F. & Pérez, M. (2012)
New records expand the known southern most range of Rajella kukujevi (Elasmobranchii, Rajidae) in the North-Eastern Atlantic (Cantabrian Sea). Journal of Applied Ichthyology, 28(4), 633–636
DOI: 10.1111/j.1439-0426.2012.01935.x

Ebert, D.A. & Stehmann, M. (2013)
Sharks, batoids, and chimaeras of the North Atlantic. FAO Species Catalogue for Fishery Purposes, 7. Rome, FAO: 523 pp.

Iglésias, S.P. (2013)
Handbook of the marine fishes of Europe and adjacent waters (A natural classification based on collection specimens, with DNA barcodes and standardized photographs), Volume I (Chondrichthyans and Cyclostomata). Provisional version 08, 01.04.2014. 105 p. http://www.mnhn.fr/iccanam

Iglésias, S.P. (2013)
Chondrichthyans and Cyclostomata from the North-eastern Atlantic and the Mediterranean (A natural classification based on collection specimens, with DNA barcodes and standardized photographs), (plates & text), Provisional version 07, 01 April 2013. 105p. http://www.mnhn.fr/iccanam

Rodríguez-Cabello, C. & Pérez, M. & Sánchez, F. (2013)
New records of chondrichthyans species caught in the Cantabrian Sea (southern Bay of Biscay). Journal of the Marine Biological Association of the United Kingdom, 93(7), 1929–1939
DOI: 10.1017/S0025315413000271

Chiquillo, K.L. & Ebert, D.A. & Slager, C.J. & Crow, K.D. (2014)
The secret of the mermaid’s purse: Phylogenetic affinities within the Rajidae and the evolution of a novel reproductive strategy in skates. Molecular Phylogenetics and Evolution, 75, 245–251
DOI: 10.1016/j.ympev.2014.01.012

Orlov, A.M. (2014)
New data on rare deep-water Mid-Atlantic skate Rajella kukujevi (Rajidae). Journal of Ichthyology, 54(5), 317–337
DOI: 10.1134/S0032945214030102

Nieto, A. & Ralph, G.M. & Comeros-Raynal, M.T. & Kemp, J. & García Criado, M. & Allen, D.J. & Dulvy, N.K. & Walls, R.H.L. & Russell, B. & Pollard, D. & García, S. & Craig, M. & Collette, B.B. & Pollom, R. & Biscoito, M. & Labbish Chao, N. & Abella, A. & Afonso, P. & Álvarez, H. & Carpenter, K.E. & Clò, S. & Cook, R. & Costa, M.J. & Delgado, J. & Dureuil, M. & Ellis, J.R. & Farrell, E.D. & Fernandes, P. & Florin, A-B. & Fordham, S. & Fowler, S. & Gil de Sola, L. & Gil Herrera, J. & Goodpaster, A. & Harvey, M. & Heessen, H. & Herler, J. & Jung, A. & Karmovskaya, E. & Keskin, C. & Knudsen, S.W. & Kobyliansky, S. & Kovačić, M. & Lawson, J.M. & Lorance, P. & Mccully Phillips, S. & Munroe, T. & Nedreaas, K. & Nielsen, J. & Papaconstantinou, C. & Polidoro, B. & Pollock, C.M. & Rijnsdorp, A.D. & Sayer, C. & Scott, J. & Serena, F. & Smith-Vaniz, W.F. & Soldo, A. & Stump, E. & Williams, J.T. (2015)
European Red List of Marine Fishes. Luxembourg: Publications Office of the European Union.
DOI: 10.2779/082723

Last, P.R. & Séret, B. & Stehmann, M.F.W. & Weigmann, S. (2016)
Skates, Family Rajidae. In Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W & Naylor, G.J.P(Eds.) Rays of the World. CSIRO Publishing, Melbourne: 204–363

Last, P.R. & Weigmann, S. & Yang, L. (2016)
Changes to the nomenclature of the skates (Chondrichthyes: Rajiformes). In Rays of the World: Supplementary information(Last, P. R. & Yearsley, G. K., eds), CSIRO Special Publication: 11–34

Pajuelo, J.G. & Seoane, J. & Biscoito, M. & Freitas, M. & Gonzalez, J.A. (2016)
Assemblages of of deep-sea fishes on the middle slope off Northwest Africa (26 degrees-33 degrees N, eastern Atlantic). Deep Sea Research Part I: Oceanographic Research Papers, 118, 66–83
DOI: 10.1016/j.dsr.2016.10.011

Weigmann, S. (2016)
Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. Journal of Fish Biology, 88(3), 837–1037
DOI: 10.1111/jfb.12874

Almeida, A.J. & Biscoito, M. (2019)
Keys to the fishes of the Eastern Atlantic Ocean, Mediterranean Sea and Black Sea. I – Myxini; Petromyzontida; Chondrichthyes Boletim do Museu de História Natural do Funchal, Suppl. 15, 1–195

Ebert, D.A. & Dando, M. (2020)
Field Guide to Sharks, Rays & Chimaeras of Europe and the Mediterranean. Princeton University Press, Woodstock, ISBN: 9780691205984

Guinot, G. & Cavin, L. (2020)
Distinct Responses of Elasmobranchs and Ray-Finned Fishes to Long-Term Global Change. Frontiers in Ecololgy and Evolution, 7, Article 513
DOI: 10.3389/fevo.2019.00513

McIvor, A.J. & Williams, C.T. & Alves, F. & Dinis, A. & Pais, M.P. & Canning-Clode, J. (2022)
The Status of Marine Megafauna Research in Macaronesia: A Systematic Review. Frontiers in Marine Science, 9, Article 819581
DOI: 10.3389/fmars.2022.819581