@InProceedings{Lopatatzidis2015ISIPTA1,
  author =    {Lopatatzidis, Stavros and De Bock, Jasper and De Cooman, Gert},
  title =     {Calculating bounds on expected return and first passage times in finite-state imprecise birth-death chains},
  booktitle = {ISIPTA'15: Proceedings of the 9th International Symposium 
           on Imprecise Probability: Theories and Applications},
  pages =     {177–186},
  year =      {2015},
  editor =    {Augustin, T. and Doria, S. and Miranda, E. and Quaeghebeur, E.},
  address =   {Pescara, Italy},
  publisher = {SIPTA}
}