. . . . . "No generic system was available, and because of the ammount of metadata records DOI's are not feasible. Therefore dedicated PID-CDI identifier solution." . . . . "2020-12-31"^^ . "2020-01-01"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "TP3eo2Kvwz+lNmtnMPClq8kg3spE+/KJviaenNDb5CpP7JTNsU9vSjHeVWl27bD0EotjU/Gx54I94jHWP/MP1zPH/+0RFC5FxgdkVDa4qqyQXDUR+3u1AYjAZEHTgeqYoUYEwBL6Vcpel9RqRdqXzgcBbtv1sOACRVSXZD/b0QM=" . . "2022-12-28T22:35:35Z"^^ . . . .