Yang, S.;                     Lei, G.;                     Xu, H.;                     Lan, Z.;                     Wang, Z.;                     Gu, H.    
        Metal Oxide Based Heterojunctions for Gas Sensors: A Review. Nanomaterials 2021, 11, 1026.
    https://doi.org/10.3390/nano11041026
    AMA Style
    
                                Yang S,                                 Lei G,                                 Xu H,                                 Lan Z,                                 Wang Z,                                 Gu H.        
                Metal Oxide Based Heterojunctions for Gas Sensors: A Review. Nanomaterials. 2021; 11(4):1026.
        https://doi.org/10.3390/nano11041026
    
    Chicago/Turabian Style
    
                                Yang, Shulin,                                 Gui Lei,                                 Huoxi Xu,                                 Zhigao Lan,                                 Zhao Wang,                                 and Haoshuang Gu.        
                2021. "Metal Oxide Based Heterojunctions for Gas Sensors: A Review" Nanomaterials 11, no. 4: 1026.
        https://doi.org/10.3390/nano11041026
    
    APA Style
    
                                Yang, S.,                                 Lei, G.,                                 Xu, H.,                                 Lan, Z.,                                 Wang, Z.,                                 & Gu, H.        
        
        (2021). Metal Oxide Based Heterojunctions for Gas Sensors: A Review. Nanomaterials, 11(4), 1026.
        https://doi.org/10.3390/nano11041026