See this from the three Dunhuang this "Ji Shi Bei Yao" is a valuable source of information.

今所得见的三种敦煌写本《记室备要》是宝贵的原始资料。

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It outline the present situation and value of Dunhuang manuscript Ji Shi Bei Yao.

概述敦煌写本《记室备要》也就现状及研究价值。

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Shi Yafeng. An Assessment of the Issues of Climatic Sbiftfrom Warm-Dry to Warm-Wet in Northwest China[M], Bei-jing:China Meteorological Press. 2003.

[施雅风。中国西北气候由暖干向暖湿转型问题评估[M]。北京：气象出版社，2003。]。

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Shi Yafeng. An Assessment of the Issues of Climatic Sbiftfrom Warm-Dry to Warm-Wet in Northwest China[M], Bei-jing:China Meteorological Press. 2003.

[施雅风。中国西北气候由暖干向暖湿转型问题评估[M]。北京：气象出版社，2003。]。

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