. . . . . "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" . "Pt7TbmsyELJsiodMhKMVltwQN5I0sfiPAH2IYbk74goG5o5Otmg4REwhLaoxIbMhmxbY4Vsdb09Yd3xcCoPk0FhZl235RTCwpsZI0arNeGNmdJNKrtAZ2U0lA4Q+Ai9QzilDKbN/pPhonYicBIPShDX70dLh9c5EEukA+RS5cjI=" . . "2022-07-20T08:11:25Z"^^ . . . .