@misc{SchmidtSchaussMachkasovaSabel2013,
  author    = {Manfred Schmidt-Schauß and Elena Machkasova and David Sabel},
  title     = {Extending Abramsky's lazy lambda calculus: (non)-conservativity of embeddings},
  booktitle = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik ; 51},
  number    = {Vers. 22.08.2013},
  url       = {http://www.ki.informatik.uni-frankfurt.de/papers/frank/frank51v2.pdf},
  institution = {Informatik},
  series    = {Technical report Frank / Johann-Wolfgang-Goethe-Universit{\"a}t, Fachbereich Informatik und Mathematik, Institut f{\"u}r Informatik},
  number    = {51 [ver. 2]},
  type      = {workingpaper},
  pages     = {1 -- 24},
  year        = {2013},
}