DOI OWNER DEPOSIT-TIMESTAMP LAST-UPDATED CITED-BY-COUNT 10.1109/ULTSYM.1990.171518 10.1109 20021204 2017-03-08 0 10.1109/ULTSYM.1990.171317 10.1109 20021204 2017-03-08 9 10.1109/ULTSYM.1990.171318 10.1109 20021204 2017-03-08 3 10.1109/ULTSYM.1990.171319 10.1109 20021204 2017-06-15 37 10.1109/ULTSYM.1990.171320 10.1109 20021204 2017-06-15 1 10.1109/ULTSYM.1990.171321 10.1109 20021204 2017-06-15 6 10.1109/ULTSYM.1990.171402 10.1109 20021204 2017-06-15 3 10.1109/ULTSYM.1990.171403 10.1109 20021204 2017-06-15 196 10.1109/ULTSYM.1990.171322 10.1109 20021204 2017-03-08 8 10.1109/ULTSYM.1990.171323 10.1109 20021204 2017-03-08 25 10.1109/ULTSYM.1990.171324 10.1109 20021204 2017-03-08 37 10.1109/ULTSYM.1990.171430 10.1109 20021204 2017-03-08 2 10.1109/ULTSYM.1990.171326 10.1109 20021204 2017-06-15 1 10.1109/ULTSYM.1990.171327 10.1109 20021204 2017-06-15 12 10.1109/ULTSYM.1990.171328 10.1109 20021204 2017-06-15 12 10.1109/ULTSYM.1990.171329 10.1109 20021204 2017-03-08 10 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