Ulrich Langer, R. Löscher, Olaf Steinbach, Huidong Yang,
"Robust finite element discretization and solvers for distributed elliptic optimal control problems"
, in Computational Methods in Applied Mathematics, Vol. 23, Nummer 4, Seite(n) 989?1005, 2023
Original Titel:
Robust finite element discretization and solvers for distributed elliptic optimal control problems