@article{SchroheWalzeWarzecha1998,
  author    = {Schrohe, Elmar and Walze, Markus and Warzecha, Jan-Martin},
  title     = {Construction de triplets spectraux a partir de modules de Fredholm},
  year      = {1998},
  language  = {de}
}
@article{SchroheNest1998,
  author    = {Schrohe, Elmar and Nest, R.},
  title     = {Diximier{\"i}s trace for boundary value problems},
  year      = {1998},
  language  = {en}
}
@article{SchroheSchulze1998,
  author    = {Schrohe, Elmar and Schulze, Bert-Wolfgang},
  title     = {Mellin operators in a pseudodifferential calculus for boundary value problems on manifolds with edges},
  year      = {1998},
  language  = {en}
}