Tavares, R. & Sanchez, L. & Medina, E. (2009)
Artisanal Fishery and Catch Structure of the Smalleye Smooth-hound Shark, Mustelus higmani (Springer & Low, 1963), from the Northeastern Region of Venezuela. Proceedings of the Sixty–Second Annual Gulf and Caribbean Fisheries Institute, 446–449

Medina, E. & Tavares, R. & Posada, J.M. (2009)
Preliminary Results about the Age and Growth of the Caribbean Sharpnose Shark, Rhizoprionodon porosus (Poey, 1861), from the Northeastern Region of Venezuela. Proceedings of the Sixty–Second Annual Gulf and Caribbean Fisheries Institute, 441–445

Pillans, R. & Medina, E. & Dulvy, N.K. (2009)
Carcharhinus albimarginatus IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org

Baum, J.K. & Clarke, S.C. & Domingo, A. & Ducrocq, M. & Lamónaca, A.F. & Gaibor, N. & Graham, R.T. & Jorgensen, S. & Kotas, J.E. & Medina, E. & Martinez-Ortiz, J. & Monzini Taccone Di Sitizano, J. & Morales, M.R. & Navarro, S.S. & Pérez-Jiménez, J.C. & Ruiz, C. & Smith, W.D. & Valenti, S.V. & Vooren, C.M. (2007)
Sphyrna lewini IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org

Baum, J.K. & Medina, E. & Musick, J.A. & Smale, M.J. (2006)
Carcharhinus longimanus IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org