Lessa, R.; F.M.Santana & P. Duarte-Neto (December 2006). "A critical appraisal of marginal increment analysis for assessing temporal periodicity in band formation among tropical sharks". Environmental Biology of Fishes. 77 (3–4): 309–315. Bibcode:2006EnvBF..77..309L. doi:10.1007/s10641-006-9111-7. S2CID23735874.
Lessa, R.; F.M. Santana; V. Batista & Z. Almeida (2000). "Age and growth of the daggernose shark, Isogomphodon oxyrhynchus, from northern Brazil". Marine and Freshwater Research. 51 (4): 339–347. doi:10.1071/MF99125.
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Lessa, R.; F.M.Santana & P. Duarte-Neto (December 2006). "A critical appraisal of marginal increment analysis for assessing temporal periodicity in band formation among tropical sharks". Environmental Biology of Fishes. 77 (3–4): 309–315. Bibcode:2006EnvBF..77..309L. doi:10.1007/s10641-006-9111-7. S2CID23735874.
Lessa, R.; F.M.Santana & P. Duarte-Neto (December 2006). "A critical appraisal of marginal increment analysis for assessing temporal periodicity in band formation among tropical sharks". Environmental Biology of Fishes. 77 (3–4): 309–315. Bibcode:2006EnvBF..77..309L. doi:10.1007/s10641-006-9111-7. S2CID23735874.