Jia , ShanghuiYao , Changhui and Xie , Hehu. (2018). Superconvergence Analysis of Gradient Recovery Method for TM Model of Electromagnetic Scattering in the Cavity.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>9</i> (3).
            543-553.
         doi:10.4208/aamm.2014.m894