A subgradient projection algorithm for nondifferentiable signal recovery. - Jian Luo 010; Patrick L. Combettes (NSIP, 1999)

A level-set subgradient projection algorithm for non-differentiable signal restoration with multiple constraints. - Jian Luo 010; Patrick L. Combettes (ICASSP, 2000)

An adaptive level set method for nondifferentiable constrained image recovery. - Patrick L. Combettes; Jian Luo 010 (IEEE Trans. Image Process., 2002)