@phdthesis{lewin_thesis,
  author = {Boehnke, Lewin Volker},
  title = {{Susceptibilities in materials with multiple strongly correlated orbitals}},
  school = {Universit\"{a}t Hamburg},
  year = {2015},
  url = {http://ediss.sub.uni-hamburg.de/volltexte/2015/7325/pdf/Dissertation.pdf}
}