Takeda S, Morioka I, Miyashita K, Okumura A, Yoshida Y, Matsumoto K (1992). „Age variation in the upper limit of hearing”. European Journal of Applied Physiology and Occupational Physiology. 65 (5): 403—8. PMID1425644. doi:10.1007/BF00243505.
Kastelein RA, Bunskoek P, Hagedoorn M, Au WW, de Haan D (jul 2002). „Audiogram of a harbor porpoise (Phocoena phocoena) measured with narrow-band frequency-modulated signals”. The Journal of the Acoustical Society of America. 112 (1): 334—44. Bibcode:2002ASAJ..112..334K. PMID12141360. doi:10.1121/1.1480835.
Mann DA, Higgs DM, Tavolga WN, Souza MJ, Popper AN (jun 2001). „Ultrasound detection by clupeiform fishes”. The Journal of the Acoustical Society of America. 109 (6): 3048—54. Bibcode:2001ASAJ..109.3048M. PMID11425147. doi:10.1121/1.1368406.
enciklopedija.hr
Ultrazvuk, "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.
Elektrostrikcija, "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.
Magnetostrikcija, "Hrvatska enciklopedija", Leksikografski zavod Miroslav Krleža, www.enciklopedija.hr, 2016.
Kastelein RA, Bunskoek P, Hagedoorn M, Au WW, de Haan D (jul 2002). „Audiogram of a harbor porpoise (Phocoena phocoena) measured with narrow-band frequency-modulated signals”. The Journal of the Acoustical Society of America. 112 (1): 334—44. Bibcode:2002ASAJ..112..334K. PMID12141360. doi:10.1121/1.1480835.
Mann DA, Higgs DM, Tavolga WN, Souza MJ, Popper AN (jun 2001). „Ultrasound detection by clupeiform fishes”. The Journal of the Acoustical Society of America. 109 (6): 3048—54. Bibcode:2001ASAJ..109.3048M. PMID11425147. doi:10.1121/1.1368406.
lsu.edu
Strain GM (2010). „How Well Do Dogs and Other Animals Hear?”. Prof. Strain's website. School of Veterinary Medicine, Louisiana State University. Архивирано из оригинала 28. 8. 2011. г. Приступљено 21. 7. 2012.
Takeda S, Morioka I, Miyashita K, Okumura A, Yoshida Y, Matsumoto K (1992). „Age variation in the upper limit of hearing”. European Journal of Applied Physiology and Occupational Physiology. 65 (5): 403—8. PMID1425644. doi:10.1007/BF00243505.
Kastelein RA, Bunskoek P, Hagedoorn M, Au WW, de Haan D (jul 2002). „Audiogram of a harbor porpoise (Phocoena phocoena) measured with narrow-band frequency-modulated signals”. The Journal of the Acoustical Society of America. 112 (1): 334—44. Bibcode:2002ASAJ..112..334K. PMID12141360. doi:10.1121/1.1480835.
Mann DA, Higgs DM, Tavolga WN, Souza MJ, Popper AN (jun 2001). „Ultrasound detection by clupeiform fishes”. The Journal of the Acoustical Society of America. 109 (6): 3048—54. Bibcode:2001ASAJ..109.3048M. PMID11425147. doi:10.1121/1.1368406.
Strain GM (2010). „How Well Do Dogs and Other Animals Hear?”. Prof. Strain's website. School of Veterinary Medicine, Louisiana State University. Архивирано из оригинала 28. 8. 2011. г. Приступљено 21. 7. 2012.