@article{BrehmZabelBucher2011,
  author    = {Maik Brehm and Volkmar Zabel and Christian Bucher},
  title     = {Optimal reference sensor positions for applications in model updating using output-only vibration test data based on random excitation: Part 2 - improved search strategy and experimental case study},
  journal   = {Mechanical Systems and Signal Processing},
  year      = {2011},
}