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（方舟子按：刘登义捏造的论文中，均把瑞典奥默大学教授Lars Ericson列为共同作者。我曾写信向Ericson教授询问，下面是他的答复。Ericson教授在答复中不仅肯定了我对刘登义制造四篇假论文的质疑，补充了其中两篇的原始出处，而且指出刘登义还有一篇假论文，并提供了出处。原信为英文）
亲爱的方是民博士，
为了答复你的询问，我向你提供如下信息。
第4篇论文发表在Oikos 68:207-216 (1993) 。
第5篇论文据称发表在Ecology 81 (1993)，它并不存在，你已给出了正确的出处。
第7篇论文据称发表在Oikos 74 (1995) ，它并不存在，它的题目与Carlsson U, Elmqvist T, Wennstrom A, and Ericson L. 发表在Journal of Ecology 78:1094-1105 (1990)的一篇论文相似：Infection by pathogens and population age of host plants.
第10篇论文据称发表在Ecology 81 (2000) ，它并不存在，题目与收在博士论文”Disease patterns in natural plant populations” （1992年，瑞典奥默大学）中的四篇论文之一相似，我是其中的一位共同作者。（该博士论文在刘登义网页中被列在非常后面，说是在1997年发表的）
第11篇论文据称发表在Amer. J. Bot. 101 (2001) ，它并不存在，你已给出了正确的出处。
第22篇论文据称发表在Ecology 81 (2000) ，它并不存在，注意其题目与第10篇论文相同，见我上面的评论。
我对此事并不知情。
我希望我的简短评论对你有所帮助。如果你还有其他问题，请和我联系。
Lars EricsonProfessorDept of ecology and environmental science Umea universitySE-901 87 UMEASweden
Dear Dr Shi-min Fang,
In response to your request, I would like to give you the below information.Paper 4 is published in Oikos 68:207-216 (1993) Paper 5 in Ecology 81 (1993) - does not exist, but you have given the correct citation below.Paper 7 in Oikos 74 (1995) - does not exist. The title shows some similarity with a paper published in Journal of Ecology 78:1094-1105 (1990); Carlsson U, Elmqvist T, Wennstrom A, and Ericson L. Infection by pathogens and population age of host plants.Paper 10 in Ecology 81 (2000) - does not exist, but the title corresponds to one of the four papers included in the PhD thesis “Disease patterns in natural plant populations” 1992 (Umea University, Sweden), on which I am a co-author. (This PhD thesis is listed at the very end on the home page as published in 1997).Paper 11 in Amer. J. Bot. 101 (2001) - does not exist as stated, but you have given the correct citation below.Paper 22 in Ecology 81 (2000) - does not exist; note the same title as for paper 10, and my comments above.
For your information, I have not been aware of this.I hope that my short comments will be of some help. If you have any further questions, don′t hesitate to contact me.
Kind regards,
Lars EricsonProfessorDept of ecology and environmental science Umea universitySE-901 87 UMEASweden
(XYS20051206)
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