. . . . . "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" . "I/tvBnYgtgmtqRQRKQKEyx6NyZYmUkGddGRrtxtBLX98YwLLEfbehfOWuKM4oUmL710QTxIerHiNGRE5Kug3ZuuT2Tj2we/D7aDtymmN+TukrYobS4cQxV/KuGZd1+3NZeQglMajad4iYFRazB2Efg99YsG0dH5WycHLrLGGapk=" . . "2022-07-29T21:23:34Z"^^ . . . .