DOI OWNER DEPOSIT-TIMESTAMP LAST-UPDATED CITED-BY-COUNT 10.1109/ULTSYM.1991.234167 10.1109 20021209 2017-06-15 6 10.1109/ULTSYM.1991.234256 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234269 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234100 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234319 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234175 10.1109 20021209 2021-05-31 16 10.1109/ULTSYM.1991.234176 10.1109 20021209 2017-03-09 6 10.1109/ULTSYM.1991.234177 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234178 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234179 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234180 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234181 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234182 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234183 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234184 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234185 10.1109 20021209 2017-06-15 15 10.1109/ULTSYM.1991.234186 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234187 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234188 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234189 10.1109 20021209 2017-06-15 31 10.1109/ULTSYM.1991.234190 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234153 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234154 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234155 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234156 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234157 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234158 10.1109 20021209 2017-06-15 9 10.1109/ULTSYM.1991.234159 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234160 10.1109 20021209 2017-03-09 4 10.1109/ULTSYM.1991.234161 10.1109 20021209 2017-03-09 14 10.1109/ULTSYM.1991.234162 10.1109 20021209 2017-06-15 8 10.1109/ULTSYM.1991.234163 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234164 10.1109 20021209 2017-06-15 5 10.1109/ULTSYM.1991.234165 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234166 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234168 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234169 10.1109 20021209 2017-03-09 7 10.1109/ULTSYM.1991.234170 10.1109 20021209 2017-06-15 4 10.1109/ULTSYM.1991.234212 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234213 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234214 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234215 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234216 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234217 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234218 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234219 10.1109 20021209 2024-01-08 0 10.1109/ULTSYM.1991.234220 10.1109 20021209 2017-06-15 9 10.1109/ULTSYM.1991.234221 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234174 10.1109 20021209 2017-03-09 7 10.1109/ULTSYM.1991.234107 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234108 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234138 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234139 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234140 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234141 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234121 10.1109 20021209 2017-03-09 6 10.1109/ULTSYM.1991.234122 10.1109 20021209 2017-06-15 12 10.1109/ULTSYM.1991.234123 10.1109 20021209 2017-06-15 16 10.1109/ULTSYM.1991.234124 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234125 10.1109 20021209 2017-06-15 5 10.1109/ULTSYM.1991.234126 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234127 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234128 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234129 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234130 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234131 10.1109 20021209 2018-01-20 23 10.1109/ULTSYM.1991.234093 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234094 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234095 10.1109 20021209 2018-01-20 0 10.1109/ULTSYM.1991.234096 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234097 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234098 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234099 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234101 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234102 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234054 10.1109 20021209 2018-01-20 3 10.1109/ULTSYM.1991.234055 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234056 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234057 10.1109 20021209 2017-03-09 8 10.1109/ULTSYM.1991.234073 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234074 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234075 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234076 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234077 10.1109 20021209 2017-06-15 3 10.1109/ULTSYM.1991.234132 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234133 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234134 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234135 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234136 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234137 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234091 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234092 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234050 10.1109 20021209 2024-01-08 0 10.1109/ULTSYM.1991.234051 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234052 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234053 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234058 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234059 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234060 10.1109 20021209 2017-03-09 4 10.1109/ULTSYM.1991.234061 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234062 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234063 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234064 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234065 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234066 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234067 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234068 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234069 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234070 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234071 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234072 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234037 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234038 10.1109 20021209 2017-03-09 19 10.1109/ULTSYM.1991.234039 10.1109 20021209 2018-01-20 6 10.1109/ULTSYM.1991.234040 10.1109 20021209 2018-01-20 4 10.1109/ULTSYM.1991.234041 10.1109 20021209 2018-01-20 4 10.1109/ULTSYM.1991.234042 10.1109 20021209 2018-01-20 2 10.1109/ULTSYM.1991.234043 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234044 10.1109 20021209 2017-03-09 12 10.1109/ULTSYM.1991.234045 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234046 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234047 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234048 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234142 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234143 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234144 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234145 10.1109 20021209 2024-01-08 1 10.1109/ULTSYM.1991.234146 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234147 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234148 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234191 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234192 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234193 10.1109 20021209 2017-03-09 20 10.1109/ULTSYM.1991.234194 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234195 10.1109 20021209 2017-03-09 8 10.1109/ULTSYM.1991.234196 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234197 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234149 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234150 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234151 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234152 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234089 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234090 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234171 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234172 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234173 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234103 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234104 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234105 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234106 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234078 10.1109 20021209 2020-03-11 2 10.1109/ULTSYM.1991.234079 10.1109 20021209 2017-03-09 4 10.1109/ULTSYM.1991.234080 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234081 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234082 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234083 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234084 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234085 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234086 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234087 10.1109 20021209 2017-03-09 8 10.1109/ULTSYM.1991.234088 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234309 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234310 10.1109 20021209 2020-03-11 24 10.1109/ULTSYM.1991.234311 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234312 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234313 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234314 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234315 10.1109 20021209 2017-06-15 4 10.1109/ULTSYM.1991.234316 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234317 10.1109 20021209 2017-03-09 6 10.1109/ULTSYM.1991.234318 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234273 10.1109 20021209 2017-03-09 4 10.1109/ULTSYM.1991.234274 10.1109 20021209 2017-06-15 15 10.1109/ULTSYM.1991.234275 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234276 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234291 10.1109 20021209 2018-01-20 3 10.1109/ULTSYM.1991.234292 10.1109 20021209 2017-06-15 3 10.1109/ULTSYM.1991.234293 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234294 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234295 10.1109 20021209 2017-03-09 5 10.1109/ULTSYM.1991.234247 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234248 10.1109 20021209 2017-03-09 11 10.1109/ULTSYM.1991.234249 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234250 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234251 10.1109 20021209 2017-06-15 7 10.1109/ULTSYM.1991.234252 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234253 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234296 10.1109 20021209 2018-01-20 0 10.1109/ULTSYM.1991.234297 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234298 10.1109 20021209 2017-03-09 14 10.1109/ULTSYM.1991.234299 10.1109 20021209 2018-01-20 11 10.1109/ULTSYM.1991.234300 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234301 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234302 10.1109 20021209 2017-03-09 15 10.1109/ULTSYM.1991.234303 10.1109 20021209 2024-01-08 11 10.1109/ULTSYM.1991.234304 10.1109 20021209 2017-03-09 14 10.1109/ULTSYM.1991.234305 10.1109 20021209 2017-03-09 10 10.1109/ULTSYM.1991.234306 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234307 10.1109 20021209 2017-03-09 8 10.1109/ULTSYM.1991.234308 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234271 10.1109 20021209 2020-03-11 0 10.1109/ULTSYM.1991.234272 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234222 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234223 10.1109 20021209 2017-06-15 5 10.1109/ULTSYM.1991.234224 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234225 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234226 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234227 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234228 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234229 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234230 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234231 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234232 10.1109 20021209 2017-06-15 15 10.1109/ULTSYM.1991.234277 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234278 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234279 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234280 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234281 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234282 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234283 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234284 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234285 10.1109 20021209 2017-03-09 16 10.1109/ULTSYM.1991.234286 10.1109 20021209 2017-06-15 41 10.1109/ULTSYM.1991.234287 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234288 10.1109 20021209 2017-03-09 2 10.1109/ULTSYM.1991.234289 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234290 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234200 10.1109 20021209 2017-06-15 4 10.1109/ULTSYM.1991.234201 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234202 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234203 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234204 10.1109 20021209 2017-06-15 10 10.1109/ULTSYM.1991.234205 10.1109 20021209 2018-01-20 0 10.1109/ULTSYM.1991.234206 10.1109 20021209 2018-01-20 4 10.1109/ULTSYM.1991.234049 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234207 10.1109 20021209 2017-06-15 3 10.1109/ULTSYM.1991.234208 10.1109 20021209 2017-06-15 7 10.1109/ULTSYM.1991.234209 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234210 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234211 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234254 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234255 10.1109 20021209 2017-03-09 4 10.1109/ULTSYM.1991.234257 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234258 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234259 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234260 10.1109 20021209 2017-06-15 2 10.1109/ULTSYM.1991.234261 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234262 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234264 10.1109 20021209 2017-03-09 8 10.1109/ULTSYM.1991.234265 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234266 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234267 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234268 10.1109 20021209 2017-06-15 1 10.1109/ULTSYM.1991.234270 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234233 10.1109 20021209 2017-06-15 7 10.1109/ULTSYM.1991.234234 10.1109 20021209 2017-03-09 4 10.1109/ULTSYM.1991.234235 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234236 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234237 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234238 10.1109 20200127162840473 2020-02-04 3 10.1109/ULTSYM.1991.234239 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234240 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234241 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234242 10.1109 20021209 2017-03-09 3 10.1109/ULTSYM.1991.234243 10.1109 20021209 2017-03-09 11 10.1109/ULTSYM.1991.234245 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234246 10.1109 20021209 2017-03-09 0 10.1109/ULTSYM.1991.234198 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234199 10.1109 20021209 2017-06-15 0 10.1109/ULTSYM.1991.234109 10.1109 20021209 2017-06-15 23 10.1109/ULTSYM.1991.234110 10.1109 20021209 2017-03-09 6 10.1109/ULTSYM.1991.234115 10.1109 20021209 2017-03-09 1 10.1109/ULTSYM.1991.234120 10.1109 20021209 2017-03-09 19 10.1109/ULTSYM.1991 10.1109 20200127162840473 2020-02-04 0