. . . . . "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" . "ldF6OXgSkLd6ZEII35/38tVnTv1ObSESJk0f7y+CcJIidb6dgUjLFgVTR6U4mNBeJGDoqoSiRKvTFSDJNcufv6X7sMnSZ+aiKvdYeOK16sbiVMvCudrKYASRZYo2IufPRn/RtLVpG1q8eKwZ61HfhU5yLCleug4IyDdWv8kLy5s=" . . "2022-08-04T18:53:31Z"^^ . . . .