@inproceedings{Pawelke1975,
  author    = {Pawelke, Siegfried},
  title     = {Approximationstheorie mit Hilfe von Jacobi-Polynomen und Kugelfunktionen},
  series = {Proceedings of the conference jointly organized by the Mathematical Institute of the Polish Academy of Sciences and the Institute of Mathematics of the Adam Mickiewicz University, held in Poznan, 22-26 August, 1972},
  booktitle = {Proceedings of the conference jointly organized by the Mathematical Institute of the Polish Academy of Sciences and the Institute of Mathematics of the Adam Mickiewicz University, held in Poznan, 22-26 August, 1972},
  editor    = {Ciesielski, Zbigniew},
  publisher = {Reichel},
  address   = {Dordrecht},
  isbn      = {90-277-0483-X},
  pages     = {157 -- 173},
  year      = {1975},
  language  = {de}
}
@article{Grueters1975,
  author    = {Gr{\"u}ters, Hugo},
  title     = {Isotrope, homogene L{\"o}sung des anisotropen, inhomogenen Plattenproblems},
  series = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik : ZAMM},
  volume    = {55},
  journal   = {Zeitschrift f{\"u}r angewandte Mathematik und Mechanik : ZAMM},
  number    = {4 (Special Issue)},
  publisher = {Wiley-VCH},
  address   = {Berlin},
  issn      = {0044-2267},
  doi       = {10.1002/zamm.19750550405},
  pages     = {T91 -- T93},
  year      = {1975},
  language  = {de}
}