. . . . . "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" . "lipf5h0aNcv3MB/9rt6qMjJQYwVi2wdkJBWYBMkFuW1jPp5uY95X18aMjd921sE9R89X8VMDzbm1qGwInNbItKJS51qFj1tY6OkJtRq4jr09CreDJHGhPFvtEXlJMHilxDWzoe96z+GEhQ1614yL3XKdx/ejBdwqKG34Ch+iCeA=" . . "2022-12-28T22:33:33Z"^^ . . . .