Notes on the Editors. Karl Popper: A Centenary Assessment. Life and Times, and Values in a World of Facts. Ashgate. 2006 [2022-10-11]. ISBN 9780754653752. (原始内容存档于2022-10-16).
Notes on the Editors. Karl Popper: A Centenary Assessment. Life and Times, and Values in a World of Facts. Ashgate. 2006 [2022-10-11]. ISBN 9780754653752. (原始内容存档于2022-10-16).