Wu , ZhifengLi , SiZeng , XueyingXu , Yuesheng and Krol , A.. (2016). Reducing Staircasing Artifacts in SPECT Reconstruction by an Infimal Convolution Regularization.
            <i>Journal of Computational Mathematics</i>. <i>34</i> (6).
            626-647.
         doi:10.4208/jcm.1607-m2016-0537