@article{KaltschmittThraenFredebeulKreinetal.2006,
  author    = {Kaltschmitt, Martin and Thr{\"a}n, Daniela and Fredebeul-Krein, Markus and Vogel, Erika and Kalitzky, Thomas and Ehrhart, Karl Martin and Hoppe, Christian and Seifert, Stefan and Sijm, Jos and B{\"o}hringer, Christoph and Hoffmann, Tim and Moslener, Ulf and Sturm, Bodo and Diekmann, Jochen and Schleich, Joachim},
  title     = {CO2-Emissionshandel},
  series = {Zeitschrift f{\"u}r Energiewirtschaft},
  volume    = {Vol. 30},
  journal   = {Zeitschrift f{\"u}r Energiewirtschaft},
  number    = {Iss. 4},
  issn      = {0343-5377 (Print) 1866-2765 (Online)},
  pages     = {271 -- 314},
  year      = {2006},
  language  = {de}
}
@article{EngelmannSeifertMuesetal.2019,
  author    = {Engelmann, Ulrich M. and Seifert, Julian and Mues, Benedikt and Roitsch, Stefan and M{\´e}nager, Christine and Schmidt, Annette M. and Slabu, Ioana},
  title     = {Heating efficiency of magnetic nanoparticles decreases with gradual immobilization in hydrogels},
  series = {Journal of Magnetism and Magnetic Materials},
  volume    = {471},
  journal   = {Journal of Magnetism and Magnetic Materials},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0304-8853},
  doi       = {10.1016/j.jmmm.2018.09.113},
  pages     = {486 -- 494},
  year      = {2019},
  language  = {en}
}