MAGMA: Multi-level accelerated gradient mirror descent algorithm for large-scale convex composite minimization 2016 (1) V. Hovhannisyan, P. Parpas, S. Zafeiriou, MAGMA: Multi-level accelerated gradient mirror descent algorithm for large-scale convex composite minimization, SIAM Journal on Imaging Sciences, volume 9, issue 4, pp.1829–1857, 2016