@article{PietschKurbel1986,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {A Portable Implementation of Index Sequential Input-Output [Part 1] / Kurbel, Karl; Pietsch, W.},
  series = {Ada letters. 6 (1986), H. 2},
  journal   = {Ada letters. 6 (1986), H. 2},
  isbn      = {0736-721X},
  pages     = {29 -- 40},
  year      = {1986},
  language  = {en}
}
@article{PietschKurbel1986,
  author    = {Pietsch, Wolfram and Kurbel, Karl},
  title     = {A Portable Implementation of Index Sequential Input-Output [Part 2] / Kurbel, Karl; Pietsch, W.},
  series = {Ada letters. 6 (1986), H. 3},
  journal   = {Ada letters. 6 (1986), H. 3},
  isbn      = {0736-721X},
  pages     = {6 -- 13},
  year      = {1986},
  language  = {en}
}