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IEEE Antennas and Wireless Propagation Letters > 2016 > 15 > 914 - 917
2014 IEEE International Ultrasonics Symposium > 2588 - 2590
IEEE Antennas and Wireless Propagation Letters > 2012 > 11 > 473 - 475
2011 IEEE International Ultrasonics Symposium > 208 - 211