@article{IrrekBunse2010,
  author    = {Irrek, Wolfgang and Bunse, Maike},
  title     = {Effiziente Dienste},
  journal   = {eta [energie]},
  volume    = {5},
  number    = {4},
  pages     = {34 -- 36},
  year      = {2010},
  language  = {de}
}