@article{RiaT07,
  author = {Riaza, Ricardo and Tischendorf, Caren},
  title = {Qualitative features of matrix pencils and DAEs arising in circuit
	dynamics},
  journal = {Dynamical Systems},
  year = {2007},
  volume = {22},
  pages = {107-131},
  number = {2},
  doi = {10.1080/14689360600834557}
}