1. T. Akamatsu, D. Wang, K. Wang, N. Yahuhiko, A method for individual identification of echoloction signals in free-ranging finless porpoises carrying data logger, J. Acoust. Soc. Am. 108, 1353–1356 (2000)
2. T. Akamatsu, A. Matsuda, S. Suzuki, D. Wang, K. Wang, M. Suzuki, H. Muramoto, N. Sugiyama, K. Oota, New stereo acoustic data logger for tagging on free-ranging dolphins and porpoises. Mar. Technol. Soc. J. 39, 3–9 (2005)
3. W.C. Burgess, P.L. Tyack, B.J. LeBouef, D.P. Costa, A microprocessor-based tag to record acoustics experieced and generated by migrating northern seals. J. Acoust. Soc. Am. 102, 3197 (1997).
4. W.C. Burgess, P.L. Tyack, B.J. LeBoeuf, D.P. Costa, A programmable acoustic tag and firest results from free-ranging northern elepant seals. Deep-Sea Res. 45, 1327–1351 (1998)
5. D.A. Byrne, D. Harris, F.K. Duennebier, R. Cessaro, The ocean sub-bottom seismometer system installed in deep sea drilling project hole 581C, leg 88: A technical review, in Initial Reports of the Deep Sea Drilling Project, ed. by F.K. Duennebier, R. Stephen, J.F. Gettrust et al., vol. LXXXVIII (U.S. Government Printing Office, Washington, DC, 1987), pp. 65–88