@misc{kalleberg-04e,
  author   = {Kalleberg, Karl Trygve},
  title    = {Abstract Syntax Trees and I},
  year     = 2004,
  month    = {October},
  note     = {Presentation at Software Technology Colloqium, Utrecht Univerity, The Netherlands},
  urlpdf   = {http://www.ii.uib.no/~karltk/phd/presentations/pres-2004-10-07.pdf},
  urlstc   = {http://www.cs.uu.nl/wiki/Stc/2004},
  address  = {Utrecht, The Netherlands},
  category = {presentation},
}