@TechReport{Kahl-2010_CN1,
  author = 	 {Wolfram Kahl},
  title =        {Collagory Notes, Version 1},
  institution =  {Software Quality Research Laboratory,
                  Department of Computing and Software,
                  McMaster University},
  year = 	 {2010},
  type = 	 {{SQRL Report}},
  number = 	 {57},
  month = 	 MAR,
  pages =        {53 pages},
  note = {In: \url{http://sqrl.mcmaster.ca/sqrl_reports.html}. (This report supersedes \cite{Kahl-2009b})}
}