dos Santos, M. E., Louro, S., Couchinho, M. & Brito, C. (2005). Whistles of bottlenose dolphins (Tursiops truncatus) in the Sado Estuary, Portugal: characteristics, production rates and long-term contour stability. Aquatic Mammals, 31 (4): 453-462 (DOI 10.1578/AM.31.4.2005.452);

Herzing, D. L. & dos Santos, M. E. (2004). Functional Aspects of Echolocation in Dolphins. In: Echolocation in Bats and Dolphins (J. Thomas, C. Moss & M. Vater, Eds.), pp. 386-393. Chicago, Ill.: University of Chicago Press;

dos Santos, M. E. & V. C. Almada (2004). A Case for Passive Sonar: Analysis of Click Train Production Patterns by Bottlenose Dolphins. In: Echolocation in Bats and Dolphins (J. Thomas, C. Moss & M. Vater, Eds.), pp. 400-403. Chicago, Ill.: University of Chicago Press;

dos Santos, M. E., Modesto, T., Matos, R. J., Grober, M. S., Oliveira, R. F. & Canário, A. (2000). Sound production by the Lusitanian toadfish (Halobatrachus didactylus). Bioacoustics, 10:309-321;

dos Santos, M. E. (1998). Golfinhos-Roazes do Sado - Estudos de Sons e Comportamento. Lisboa: Edições ISPA, Colecção Teses.