DOI                                                                                                  OWNER      DEPOSIT-TIMESTAMP         LAST-UPDATED   CITED-BY-COUNT

10.1109/ULTSYM.1969.1610450                                                                          10.1109    20200127162840473         2020-02-02     0             
10.1109/ULTSYM.1969                                                                                  10.1109    20200127162840473         2020-02-02     0