@article{DBLP:journals/aaecc/RomeroS12,
  author    = {Ana Romero and
               Francis Sergeraert},
  title     = {Effective homotopy of fibrations},
  journal   = {Appl. Algebra Eng. Commun. Comput.},
  volume    = {23},
  number    = {1-2},
  year      = {2012},
  pages     = {85-100},
  ee        = {http://dx.doi.org/10.1007/s00200-012-0168-6},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}