. . . . . "No generic system was available, and because of the ammount of metadata records DOI's are not feasible. Therefore dedicated PID-CDI identifier solution." . . . . "2022-12-31"^^ . "2022-01-01"^^ . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" . "kAIOkmakZnkX+Tk70KxtVpxLgZypIjI8HqA9SfAPBljDMiV2QGqeU/B1hGb+1s4H9PJV1wiXPcixy50F6IaFSV9TqPynIxyM+ecD0EDCtXgo8qK3m3og3h0SfBQZHjknEy4VDekXirO5jBe4w9omXY4XghRIhb0TKgbEhZpdrX8=" . . "2023-04-25T02:22:53Z"^^ . . . .