@misc{SchmidtSchaussSabelMachkasova2010,
  author    = {Manfred Schmidt-Schauß and David Sabel and Elena Machkasova},
  title     = {Simulation in the call-by-need lambda-calculus with letrec},
  booktitle = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik ; 40},
  url       = {http://www.ki.informatik.uni-frankfurt.de/papers/frank/frank-40.pdf},
  institution = {Informatik},
  series    = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik},
  number    = {40},
  type      = {workingpaper},
  pages     = {34},
  year        = {2010},
}