Kong , WeichaoWang , JianjunWang , Wendong and Zhang , Feng. (2020). Enhanced Block-Sparse Signal Recovery Performance via Truncated $ℓ_2/ℓ_{1−2}$ Minimization. Journal of Computational Mathematics. 38 (3). 437-451. doi:10.4208/jcm.1811-m2017-0275