@misc{SchmidtSchauss2007,
  author    = {Manfred Schmidt-Schauß},
  title     = {Correctness of copy in calculi with letrec, case, constructors and por},
  booktitle = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik ; 29},
  url       = {http://www.ki.informatik.uni-frankfurt.de/papers/schauss/cbnnPPCC-IB29.pdf},
  institution = {Informatik},
  series    = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik},
  number    = {29},
  type      = {workingpaper},
  pages     = {1 -- 13},
  year        = {2007},
}