"Tavaramerkkilehti"(PDF). Tavaramerkkilehti (10). National Board of Patents and Registration of Finland: 27–28. 2006-05-31. Archived from the original(PDF) on 2007-06-20. Retrieved 2007-06-16.
"Tavaramerkkilehti"(PDF). Tavaramerkkilehti (10). National Board of Patents and Registration of Finland: 27–28. 2006-05-31. Archived from the original(PDF) on 2007-06-20. Retrieved 2007-06-16.