Crank-Nicolson Time Stepping and Variational Discretization of Control-Constrained Parabolic Optimal Control Problems. - Nikolaus von Daniels; Michael Hinze; Morten Vierling (SIAM J. Control. Optim., 2015)

Tikhonov regularization of control-constrained optimal control problems. - Nikolaus von Daniels (Comput. Optim. Appl., 2018)