@article{berljafa_güttel_2015, 
  title={Generalized Rational Krylov Decompositions with an Application to Rational Approximation}, 
  volume={36}, 
  DOI={10.1137/140998081}, 
  publisher={Society for Industrial & Applied Mathematics (SIAM)}, 
  author={Berljafa and Güttel}, 
  year={2015}
  }