@techreport{2007-Breemen-SheetsProcesses,
  author		= "{Breemen}, A.J.J. van and {Sarbo}, J.J.",
  title			= "{Sign Processes and the Sheets of Semeiosis}",
  number		= "ICIS--R07003",
  month			= "January",
  institution		= "Radboud University Nijmegen",
  year			= "2007",
  research_group	= "iris",
  class			= "Report"
}