K. Bredies, M. Carioni, M. Holler:
Regularization Graphs - A unified framework for variational regularization of inverse problems
Inverse Problems 2022

K. Bredies, M. Carioni, M. Holler, Y. Korolev, C. B. Schönlieb:
A sparse optimization approach to infinite infimal convolution
  regularization
(preprint) 2023