@inproceedings{chi-wai2012linear,
  title={Linear orthogonality preservers of Hilbert *-modules over *-algebras with real rank zero},
  author={Chi-Wai Leung, Chi-Keung Ng, and Ngai-Ching Wong},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020205928441028191},
  booktitle={Proceedings of the American Mathematical Society},
  volume={140},
  number={9},
  pages={3151-3160},
  year={2012},
}
             
            
                
Chi-Wai Leung, Chi-Keung Ng, and Ngai-Ching Wong. Linear orthogonality preservers of Hilbert *-modules over *-algebras with real rank zero. 2012. Vol. 140. In Proceedings of the American Mathematical Society. pp.3151-3160. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020205928441028191.