IMPORTANT NOTE by Vukman Bakić, Editor-in-Chief of the journal Thermal Science Retraction Editor-in-Chief of the journal Thermal Science request that it is necessary to retract paper Analysis of controlling factors for hydraulic fracturing parameters and accumulated production using machine learning https://doi.org/10.2298/TSCI2404417Z by Zhihua ZHU, Maoya HSU, Chang LI, Jiacheng DAI, Bobo XIE, Zhengchao MA, Tianyu WANG, Jie LI, and Shouceng TIAN published in the journal Thermal Science, Vol. 28, Year 2024, No.4B, pp. 3417-3422 since by technical error of the Editorial staff, this paper has already been published in the journal Thermal Science Vol.28, Part 2A, pp. 1155-1160, 2024 https://doi.org/10.2298/TSCI230726039Z. Link to the retracted article 10.2298/TSCI2404417Z