@article{LoebbeKalnySchepers2021,
  author    = {Sabine L{\"o}bbe and Gerald Kalny and Marcel Schepers},
  title     = {Energiedienstleistungen - ja, aber wie?},
  journal   = {Energiewirtschaftliche Tagesfragen : et},
  volume    = {71},
  number    = {1-2},
  pages     = {10 -- 12},
  year        = {2021},
}