@phdthesis{Bangert1999Quadrikensplines,
  Author = {Claudia Bangert},
  Title = {Quadrikensplines},
  Month = dec,
  Year = {1999},
  School = {Universit{"a}t Karlsruhe (TH)},
  Note = {Verlag Shaker, Aachen 2000}
}