@Article{ppl,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig},
  title = 	 {Using duplication for multiprocessor scheduling problem with hierarchical communications},
  journal = 	 {Parallel processing letters},
  volume = 	 10, 
  number = 	 1,
  pages={133--140},
  year = 	 {2000}
}

@InProceedings{spaa01,
  author = 	 {E. Bampis and R. Giroudeau and A. Kononov},
  title = 	 {How to schedule precedence constrained tasks with small hierarchical communication delays},
  booktitle = 	 {Thirteenth annual ACM Symposium on Parallel Algorithms and Architectures},
  OPTcrossref =  {},
  OPTkey = 	 {},
  pages = 	 {314--315},
  year = 	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  OPTorganization = {},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@TechReport{angel,
  author = 	 {E.~Angel, E.~Bampis, and R.~Giroudeau},
  title = 	 {On the complexity on short schedules for the workstation},
  institution =  {Universit\'e d'\'Evry-Val D'Essonne},
  year = 	 {2001},
  OPTkey = 	 {},
  OPTtype = 	 {},
  OPTnumber = 	 {},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}


@TechReport{kononov,
  author = 	 {E. Bampis and R. Giroudeau and A. Kononov},
  title = 	 {How to schedule precedence constrained tasks with small hierarchical communication delays},
  institution =  {Universit\'e d'\'Evry-Val D'Essonne},
  year = 	 {2000},
  number = 	 47
}
@InProceedings{neuropar99,
  author = 	 {E. Bampis and R. Giroudeau and J.-C. K\"onig},
  title = 	 {Using duplication for the precedence constrained multiprocessor scheduling problem with hierarchical communications},
  booktitle = 	 {EuroPar'99 Parallel Processing},
  editor = 	 {P. Amestoy et al.},
  series = 	 {LNCS, No. 1685},
  year = 	 {1999, an extended version to appear in PPL},
  publisher = {Springer-Verlag},
  pages = 	 {369--372}
}
@InProceedings{stacs2000,
  author = 	 {E. Bampis and R. Giroudeau and J.-C. K\"onig},
  title = 	 {A heuristic for the precedence constrained multiprocessor scheduling problem with hierarchical communications},
  booktitle = 	 {Proceedings of STACS},
  editor = 	 {H. Reichel and S. Tison},
  series = 	 {LNCS No. 1770},
  year = 	 2000,
  publisher = {Springer-Verlag},
  pages = 	 {443--454}
}
@InProceedings{confinviteemetz,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig.},
  title = 	 {Some results on scheduling in the presence of hierarchical communications},
  booktitle = 	 {Journ\'ees de l'informatique Messine},
  year = 	 1999,
  month = 	 {Mai}
}

@InProceedings{europar99,
  author = 	 {E. Bampis and R. Giroudeau and J.-C. K\"onig},
  title = 	 {Using duplication for the precedence constrained multiprocessor scheduling problem with hierarchical communications},
  booktitle = 	 {EuroPar'99 Parallel Processing},
  editor = 	 {P. Amestoy and P. Berger and M. Dayd{\'e} and I. Duff
                          and V. Frayss{\'e} and L. Giraud and D. Ruiz},
  series = 	 {Lecture Notes in Computer Science, No. 1685},
  year = 	 1999,
  publisher = {Springer-Verlag},
  pages = 	 {369--372}
}
@TechReport{heuristique,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig},
  title = 	 {A heuristic for the precedence constrained multiprocessor scheduling problem with hierarchical communications},
  institution =  {Universit\'e d'\'Evry Val d'Essonne},
  year = 	 1999,
  number = 	 35
}
@TechReport{duplication,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig},
  title = 	 {Using duplication for the precedence constrained multiprocessor scheduling problem with 
hierarchical communications},
  institution =  {Universit\'e d'\'Evry Val d'Essonne},
  year = 	 1999,
  number = 	 36
}


@InProceedings{confinvitee,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig},
  title = 	 {Approximation results for the precedence constrained multiprocessors scheduling},
  booktitle = 	 {International Conference on Optimization},
  year = 	 {mars 1999},
  organization = {Trier (Allemagne)}
}

@InProceedings{renpar11,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig},
  title = 	 {L'impact des communications hi\'erarchiques sur les probl\`emes d'ordonnancement},
  booktitle = 	 {Renpar'11},
  year = 	 {juin 1999},
    address = 	 {Rennes},
  pages = 	 {97--102}
}

@TechReport{npcompletude,
  author = 	 {E. Bampis and R. Giroudeau and J.C. K\"onig},
  title = 	 {On the hardness of approximating the precedence constrained multiprocessor scheduling problem with hierarchical communications},
  institution =  {LaMI, Universit\'e d'\'Evry Val d'Essonne, to appear in RAIRO Operations Research},
    number = 	 34
}
@PhdThesis{giroudeau,
  author = 	 {R. Giroudeau},
  title = 	 {L'impact des délais de communications hiérarchiques sur la complexité et l'approximation des problèmes d'ordonnancement},
  school = 	 {Université d'Évry Val d'Essonne},
   year = 	 2000
}