Pérez-Rojas, J. G., K. Torres-Palacios, A. Uribe, A. F. Navia, and P. A. Mejía-Falla. “Evaluation of Staining Techniques for the Observation of Growth Bands in Tropical Elasmobranch Vertebrae”. Scientia Marina, vol. 84, no. 4, Dec. 2020, pp. 343-54, doi:10.3989/scimar.05045.03A.