@misc{SchmidtSchauss2006,
  author    = {Manfred Schmidt-Schauß},
  title     = {Equivalence of call-by-name and call-by-need for lambda-calculi with letrec},
  booktitle = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik ; 25},
  number    = {Vers.: 29. September 2006},
  url       = {http://www.ki.informatik.uni-frankfurt.de/papers/schauss/cbneedname-inftree.pdf},
  institution = {Informatik},
  series    = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik},
  number    = {25},
  type      = {workingpaper},
  pages     = {21},
  year        = {2006},
}