@article{HigMT03a,
  author = {I. Higueras and R. März and C. Tischendorf},
  title = {Stability preserving integration of index-1 {DAEs} },
  journal = {Appl. Numer. Math.},
  year = {2003},
  volume = {45},
  pages = {175 - 200},
  number = {2–3},
  doi = {http://dx.doi.org/10.1016/S0168-9274(02)00215-5}
}