@techreport{KrugMehrmannSchmidt2019,
  author    = {Richard Krug and Volker Mehrmann and Martin Schmidt},
  title     = {Nonlinear Optimization of District Heating Networks},
  journal   = {Optimization and Engineering},
  number    = {22(2)},
  pages     = {783 -- 819},
  year      = {2019},
  url  = {https://opus4.kobv.de/opus4-trr154/283},
  type = {Preprint},
  institution  = {TRR 154}
}