,
Springer
B. Koren (Barry) , C. Vuik
Lecture Notes in Computational Science and Engineering
Scientific Computing

Oosterlee, K., Vuik, C., Mulder, W. A., & Plessix, R.-E. (2009). Shifted-Laplacian preconditioners for heterogeneous Helmholtz problems. In B. Koren & C. Vuik (Eds.), Advanced Computational Methods in Science and Engineering (pp. 21–46). Springer.