Important note! by Vukman Bakic, Editor-in-Chief of the journal Thermal Science - Retraction - https://doi.org/10.2298/TSCI181119187P dr. Vukman Bakic, Editor-in-chief of the journal THERMAL SCIENCE request that it is necessary to retract paper DUAL DIAGNOSTIC METHOD FOR FRACTURE MORPHOLOGY OF THERMAL COALBED METHANE RESERVOIR by Xiao PU, Dali GUO * and YunxiangZHAO School of Sciences, Southwest Petroleum University, Chengdu, Sichuan, China Original scientific paper https://doi.org/10.2298/TSCI181119187P THERMAL SCIENCE: Year 2019, Vol. 23, No. 5A, pp. 2741-2748 since, this paper was already published by the same authors in the journal Acta Microscopica Vol. 28, No.2, 2019, pp.131-138, under the same title, and the same abstract, the figures and so on: Dual Diagnostic Method for Fracture Morphology of Thermal Coalbed Methane Reservoir Xiao Pu School of Sciences, Southwest Petroleum University, Chengdu, Sichuan, China Dali Guo* School of Sciences, Southwest Petroleum University, Chengdu, Sichuan, China *Corresponding author(E-mail: Smilynuo@163.com) Yunxiang Zhao School of Sciences, Southwest Petroleum University, Chengdu, Sichuan, China Following presented data, paper https://doi.org/10.2298/TSCI181119187P have to be treated as self plagiarism. Link to the retracted article 10.2298/TSCI181119187P