Li, X.;                     Liu, C.;                     An, X.;                     Niu, L.;                     Feng, J.;                     Liu, Z.    
        Bio-Based Alkali Lignin Cooperative Systems for Improving the Flame Retardant and Mechanical Properties of Rigid Polyurethane Foam. Polymers 2023, 15, 4709.
    https://doi.org/10.3390/polym15244709
    AMA Style
    
                                Li X,                                 Liu C,                                 An X,                                 Niu L,                                 Feng J,                                 Liu Z.        
                Bio-Based Alkali Lignin Cooperative Systems for Improving the Flame Retardant and Mechanical Properties of Rigid Polyurethane Foam. Polymers. 2023; 15(24):4709.
        https://doi.org/10.3390/polym15244709
    
    Chicago/Turabian Style
    
                                Li, Xu,                                 Chang Liu,                                 Xinyu An,                                 Li Niu,                                 Jacko Feng,                                 and Zhiming Liu.        
                2023. "Bio-Based Alkali Lignin Cooperative Systems for Improving the Flame Retardant and Mechanical Properties of Rigid Polyurethane Foam" Polymers 15, no. 24: 4709.
        https://doi.org/10.3390/polym15244709
    
    APA Style
    
                                Li, X.,                                 Liu, C.,                                 An, X.,                                 Niu, L.,                                 Feng, J.,                                 & Liu, Z.        
        
        (2023). Bio-Based Alkali Lignin Cooperative Systems for Improving the Flame Retardant and Mechanical Properties of Rigid Polyurethane Foam. Polymers, 15(24), 4709.
        https://doi.org/10.3390/polym15244709