Per_Gyllenspetz_Y__C_headline_980x28
Articles: 

  http://www.ozmarine.se/Download/segling.pdf

  http://www.teknikensvarld.se/provkorningar/toyota/land-cruiser-v8-d4d-at35/index.xml

  http://www.teknikensvarld.se/number/2010/10/index.xml
T6 Roadster: 

  http://www.dinside.no/116080/volvo-t6-roadster-%C5rets-hot-rod

  http://ru.wikipedia.org/wiki/Volvo_T6

  http://www.autoweb.cz/volvo-t6-roadster/
V8 Speedster: 

  http://www.e24.se/lifestyle/fart/bejublat-svenskbygge_82847.e24

  http://german.automk.com/thread-44159-1-1.html

  http://www.supercars.net/cars/3640.html

  http://www.carbodydesign.com/archive/2006/11/01-caresto-v8-speedster/
Arctic Trucks: 

  http://www.antarcticachallenge.com
Lectures: 
  http://www.cumulusassociation.org/index.php?option=com_docman&task=doc_details&gid=50/WP_Bratislava_painoon.pdf
Academic: 

  http://www.tekniskasamfundet.se/samfundet/sam_ts_aktuellt/ts_aktuellt_htm/transportseminarie_Per%20Gyllenspetz.pdf

  http://www.svid.se/upload/7973/Rapportnomad.pdf
Think tank GATT: 
  http://nymobilitet.blogspot.com
Patents: 

  http://www.europatentbox.com/inventors/GYLLENSPETZ-PER/164805.html

  http://www.freepatentsonline.com/result.html?query_txt=per+gyllenspetz&sort=relevance&srch=top&search