Ulrich Langer, Monika Wolfmayr,
"Multiharmonic finite element analysis of a time-periodic parabolic optimal control problem"
, in Journal of Numerical Mathematics, Vol. 21, Nummer 4, Seite(n) 265 ? 300, 2013, ISSN: 1569-3953
Original Titel:
Multiharmonic finite element analysis of a time-periodic parabolic optimal control problem