. . . . . "No generic system was available, and because of the ammount of metadata records DOI's are not feasible. Therefore dedicated PID-CDI identifier solution." . . . . "2019-12-31"^^ . "2019-01-01"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "fAwfUJr1nmY1cQ7rq315KXx5FDsnDCyKA1WH1oMjRtbfv2K+fonDawXO86cCMK4Zj5FzY6UQxmqXJS9IX1GVMtjYbpFaJdRx9vDKFxW3z+CD0VRscGdw3bOGRk/q1NxkHVgzIkFLMbVybjOchhIaHFLI8DvCpa50/w0kqSldeMM=" . . "2024-01-22T19:02:54Z"^^ . . . .