Han Zhengkang 韩正康, Yuan Xiaowen 袁晓文, and Katia Chirkova 齐卡佳. Sichuan Mianning Duoxu hua 四川冕宁多续话 (The Duoxu Language of Mianning County in Sichuan Province). Beijing 北京: Shangwu yinshuguan 商务印书馆, 2019. ISBN 978-7-100-17852-5. Publisher's Website.

Duoxu is a critically endangered language. It is a traditional language used by Tibetans living in the upper reaches of the Anning River in southwestern Sichuan Province. At present, there are only six speakers who are fluent in Duoxu, and all of them are above 70 years of age. In 2016, the Endangered Language Protection Program funded a project to document and protect this critically endangered language. In accordance with the requirements of the Endangered Language Protection Program, the research team recorded the language in situ using modern linguistic methods. The resulting book is based on first-hand fieldwork data collected by the authors. The book is divided into six parts: introduction, phonetics/phonology, lexicon, thematically organized word-list, morphosyntax, and appended texts. There is a list of conventions for interlinear morpheme-by-morpheme glosses at the front of the book, and fieldwork notes and an afterword at the back. This book is of great significance for documenting and safeguarding Duoxu, and provides rich information for linguists and enthusiasts alike to understand and learn Duoxu.

多续话属极度濒危语言,是世居于四川省西南部安宁河上游的藏族使用的传统语言,目前能较流利使用多续话者仅有六位,均年岁已高。为抢救、保护这一极度濒危语言,语保中心将其列为二零一六年度濒危语言项目。按照语保中心统一要求,课题组运用现代语言学的方法实地调查记录了该语言,《四川冕宁多续话》就是利用调查到的第一手资料书写而成。本书是客观反映多续话语音、词汇、语法的第一部语言志类型的专著,全书分为导论、语音、词汇、分类词表、语法、语料六个部分。在书的前面有语法标注缩略语对照表,后面有调查手记和后记。本书对于记录和保存多续话具有重要意义,并为爱好者了解和学习多续话提供了重要资料。