@incollection{Marquardt2015,
  author    = {Ralf-Michael Marquardt},
  title     = {Makro{\"o}konomie und Mikro{\"o}konomie},
  booktitle = {Pr{\"u}fungstraining f{\"u}r Wirtschaftsstudierende},
  edition   = {4},
  editor    = {Werner Pepels},
  isbn      = {978-3-8305-3596-6},
  year      = {2015},
}