^Manfred von Thun. A Conversation with Manfred von Thun. December 12, 2003 [May 31, 2013]. (原始内容存档于2020-11-09). In the early 1980s I came across the famous Backus paper "Can programming be liberated from the von Neumann style," and I was immediately intrigued by the higher level of programming in his FP.