Richter, A.;                     Paschew, G.;                     Klatt, S.;                     Lienig, J.;                     Arndt, K.-F.;                     Adler, H.-J.P.    
        Review on Hydrogel-based pH Sensors and Microsensors. Sensors 2008, 8, 561-581.
    https://doi.org/10.3390/s8010561
    AMA Style
    
                                Richter A,                                 Paschew G,                                 Klatt S,                                 Lienig J,                                 Arndt K-F,                                 Adler H-JP.        
                Review on Hydrogel-based pH Sensors and Microsensors. Sensors. 2008; 8(1):561-581.
        https://doi.org/10.3390/s8010561
    
    Chicago/Turabian Style
    
                                Richter, Andreas,                                 Georgi Paschew,                                 Stephan Klatt,                                 Jens Lienig,                                 Karl-Friedrich Arndt,                                 and Hans-Jürgen P. Adler.        
                2008. "Review on Hydrogel-based pH Sensors and Microsensors" Sensors 8, no. 1: 561-581.
        https://doi.org/10.3390/s8010561
    
    APA Style
    
                                Richter, A.,                                 Paschew, G.,                                 Klatt, S.,                                 Lienig, J.,                                 Arndt, K.-F.,                                 & Adler, H.-J. P.        
        
        (2008). Review on Hydrogel-based pH Sensors and Microsensors. Sensors, 8(1), 561-581.
        https://doi.org/10.3390/s8010561