Ma, Q.;                     Zhang, Y.;                     Gao, L.;                     Li, Z.;                     Song, G.;                     Zheng, Y.    
        The Optimization of Coal Pillars on Return Air Sides and the Reasonable Horizon Layout of Roadway Groups in Highly Gassy Mines. Sustainability 2022, 14, 9417.
    https://doi.org/10.3390/su14159417
    AMA Style
    
                                Ma Q,                                 Zhang Y,                                 Gao L,                                 Li Z,                                 Song G,                                 Zheng Y.        
                The Optimization of Coal Pillars on Return Air Sides and the Reasonable Horizon Layout of Roadway Groups in Highly Gassy Mines. Sustainability. 2022; 14(15):9417.
        https://doi.org/10.3390/su14159417
    
    Chicago/Turabian Style
    
                                Ma, Qi,                                 Yidong Zhang,                                 Linsheng Gao,                                 Zexin Li,                                 Guangyuan Song,                                 and Yu Zheng.        
                2022. "The Optimization of Coal Pillars on Return Air Sides and the Reasonable Horizon Layout of Roadway Groups in Highly Gassy Mines" Sustainability 14, no. 15: 9417.
        https://doi.org/10.3390/su14159417
    
    APA Style
    
                                Ma, Q.,                                 Zhang, Y.,                                 Gao, L.,                                 Li, Z.,                                 Song, G.,                                 & Zheng, Y.        
        
        (2022). The Optimization of Coal Pillars on Return Air Sides and the Reasonable Horizon Layout of Roadway Groups in Highly Gassy Mines. Sustainability, 14(15), 9417.
        https://doi.org/10.3390/su14159417