@misc{proper2001we,
   author = {Proper, Henderik A.},
   howpublished = {Presented at {NINJA} evening},
   month = {June},
   title = {Should We Stop Acting like {``{Control-Freaks}''}?},
   url = {http://www.niii.kun.nl/is/Docs/Presentation:01:Proper:ActorWebNINJA.pdf},
   urldate = {2001-12-20},
   year = {2001},
}