You may find press releases, the citation of the Abel Committee, and the biography of the Abel Prize laureate here. The documents are available in multiple languages, and you are free to cite them however you please.
You will also find press contacts if you should have any inquiries.
Press contact on behalf of the laureate:
Director of Communications, University of Texas at Austin
Telephone: (+1) 512 853 0506
Press contact on behalf of the Abel Prize:
Head of communications, The Norwegian Academy of Science and Letters
Telephone: (+47) 938 66 312