TY - RPRT TI - A sparse control approach to optimal sensor placement in PDE-constrained parameter estimation problems AU - Neitzel, Ira AU - Pieper, Konstantin AU - Vexler, Boris AU - Walter, Daniel PY - 2019 DO - 10.1007/s00211-019-01073-3 UR - https://www.osti.gov/biblio/1803062 ID - 1803062 ER -