@article{Schrohe1999,
  author    = {Schrohe, Elmar},
  title     = {Frechet algebra techniques for boundary value problems on noncompact manifolds : Fredholm riteria and functional calculus via spectral invariance},
  year      = {1999},
  language  = {en}
}
@article{SchroheHieber1999,
  author    = {Schrohe, Elmar and Hieber, Matthias},
  title     = {Lp spectral independence of elliptic operators via commutator estimates},
  year      = {1999},
  language  = {en}
}
@article{SchroheSchulze1999,
  author    = {Schrohe, Elmar and Schulze, Bert-Wolfgang},
  title     = {Mellin and Green symbols for boundary value problems on manifolds with edges},
  year      = {1999},
  language  = {en}
}
@article{Schrohe1999,
  author    = {Schrohe, Elmar},
  title     = {Noncommutative residues, Diximier{\"i}s trace, and heat trace expansions on manifolds with boundary},
  year      = {1999},
  language  = {en}
}