Operator          266 old_code/tumor_growth/tumor_growth.h     : Dune::Fem::Operator<Vec_discrete_function>{
Operator          328 old_code/tumor_growth/tumor_growth.h     : Dune::Fem::Operator<Scalar_discrete_function>{
Operator           37 src/secOrd_op_linearHeat.cpp class Linear_heat_op : public Dune::Fem::Operator<FE_function>{
Operator           41 src/secOrd_op_solutionDriven_impl.h       : public Dune::Fem::Operator<Esfem::Grid::Vec_FEfun::Dune_FEfun>