@article{AliBST13a,
  author = {G. Al{\'i} and N. Banagaaya and W.H.A. Schilders and C. Tischendorf},
  title = {Index-Aware Model Order Reduction for Linear Index-2 {DAEs} with
	Constant Coefficients},
  journal = {SIAM J. Sci. Comp.},
  year = {2013},
  volume = {35},
  pages = {A1487--A1510},
  number = {3},
  doi = {10.1137/120894415 }
}