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1994 Proceedings of IEEE Ultrasonics Symposium > 3 > 1777 - 1781 vol.3
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing > 1 > 217 - 220 vol.1
1994 Proceedings of IEEE Ultrasonics Symposium > 3 > 1777 - 1781 vol.3
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing > 1 > 217 - 220 vol.1