Attik, M.;                     Missen, M.M.S.;                     Coustaty, M.;                     Choi, G.S.;                     Alotaibi, F.S.;                     Akhtar, N.;                     Jhandir, M.Z.;                     Prasath, V.B.S.;                     Salamat, N.;                     Husnain, M.    
        OpinionML—Opinion Markup Language for Sentiment Representation. Symmetry 2019, 11, 545.
    https://doi.org/10.3390/sym11040545
    AMA Style
    
                                Attik M,                                 Missen MMS,                                 Coustaty M,                                 Choi GS,                                 Alotaibi FS,                                 Akhtar N,                                 Jhandir MZ,                                 Prasath VBS,                                 Salamat N,                                 Husnain M.        
                OpinionML—Opinion Markup Language for Sentiment Representation. Symmetry. 2019; 11(4):545.
        https://doi.org/10.3390/sym11040545
    
    Chicago/Turabian Style
    
                                Attik, Mohammed,                                 Malik Muhammad Saad Missen,                                 Mickaël Coustaty,                                 Gyu Sang Choi,                                 Fahd Saleh Alotaibi,                                 Nadeem Akhtar,                                 Muhammad Zeeshan Jhandir,                                 V. B. Surya Prasath,                                 Nadeem Salamat,                                 and Mujtaba Husnain.        
                2019. "OpinionML—Opinion Markup Language for Sentiment Representation" Symmetry 11, no. 4: 545.
        https://doi.org/10.3390/sym11040545
    
    APA Style
    
                                Attik, M.,                                 Missen, M. M. S.,                                 Coustaty, M.,                                 Choi, G. S.,                                 Alotaibi, F. S.,                                 Akhtar, N.,                                 Jhandir, M. Z.,                                 Prasath, V. B. S.,                                 Salamat, N.,                                 & Husnain, M.        
        
        (2019). OpinionML—Opinion Markup Language for Sentiment Representation. Symmetry, 11(4), 545.
        https://doi.org/10.3390/sym11040545