@misc{SchmidtSchaussSabel2007,
  author    = {Manfred Schmidt-Schauß and David Sabel},
  title     = {On generic context lemmas for lambda calculi with sharing},
  booktitle = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik ; 27},
  number    = {Version: 6. Januar 2007},
  url       = {http://www.ki.informatik.uni-frankfurt.de/papers/frank/frank-27.pdf},
  institution = {Informatik},
  series    = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik},
  number    = {27},
  type      = {workingpaper},
  pages     = {17},
  year        = {2007},
}