Liu, X., Tian, G., Fathollahi-Fard, A. M., & Mojtahedi, M. (2020). Evaluation of ship’s green degree using a novel hybrid approach combining group fuzzy entropy and cloud technique for the order of preference by similarity to the ideal solution theory. Clean technologies and environmental policy, 22(2), 493-512. https://doi.org/10.1007/s10098-019-01798-7

Liu, Xu, Guangdong Tian, Amir Mohammad Fathollahi-Fard, a Mohammad Mojtahedi. "Evaluation of Ship’s Green Degree Using a Novel Hybrid Approach Combining Group Fuzzy Entropy and Cloud Technique for the Order of Preference by Similarity to the Ideal Solution Theory." Clean Technologies and Environmental Policy 22, no. 2 (2020): 493-512. https://doi.org/10.1007/s10098-019-01798-7.

Liu, Xu, et al. "Evaluation of Ship’s Green Degree Using a Novel Hybrid Approach Combining Group Fuzzy Entropy and Cloud Technique for the Order of Preference by Similarity to the Ideal Solution Theory." Clean Technologies and Environmental Policy, vol. 22, no. 2, 2020, pp. 493-512, https://doi.org/10.1007/s10098-019-01798-7.