@book{LouisMaassRieder1998,
  author    = {Louis, Alfred K. and Maaß, Peter and Rieder, Andreas},
  title     = {Wavelets : Theorie und Anwendungen},
  publisher = {Vieweg+Teubner Verlag},
  address   = {Wiesbaden},
  isbn      = {3-519-12094-1},
  doi       = {10.1007/978-3-322-80136-4},
  pages     = {330 S.},
  year      = {1998},
  language  = {de}
}
@article{Boelling1998,
  author    = {B{\"o}lling, Reinhard},
  title     = {Weierstraß and some members of his circle : Kovalevskaja, Fuchs, Schwarz, Schottky},
  isbn      = {3-7643-5943- 9},
  year      = {1998},
  language  = {en}
}
@misc{Schrohe1998,
  author    = {Schrohe, Elmar},
  title     = {Wloka, J. T. [u.a.], Boundary value problems for eliptic systems},
  year      = {1998},
  language  = {en}
}
@article{Jahnke1998,
  author    = {Jahnke, Thomas},
  title     = {Zur Kritik und Bedeutung der Stoffdidaktik},
  year      = {1998},
  language  = {de}
}