On the emission of echo-location signals by the Azov Sea harbor porpoise
Dubrovskii, N.A.; Krasnov, P.S.; Titov, A.A. (1971). On the emission of echo-location signals by the Azov Sea harbor porpoise. Sov. Phys. Acous. 16: 444-447
In: Soviet Physics. Acoustics. The American Institute of Physics: New York. ISSN 0038-562X, meer
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