APA Style
      Fuhrmann, P, A., Helmke, U. (2015).
    The Mathematics of Networks of Linear Systems .
    Springer Cham:
  Springer Cham.
  
MLA Style
      Fuhrmann, Paul, A.., Helmke, Uwe.
    "The Mathematics of Networks of Linear Systems".
    
    Springer Cham:
  Springer Cham,
  2015.
  Text.