Internet resources for the Olympiads
International Federation of Philosophical Societies
Institut für Philosophie, Wien
IPO 2013, Odense, Denmark (ipo2013.dk - not longer available)
IPO 2014, Vilnius, Lithuania (ipo2014.lt - not longer available)
IPO 2015, Tartu, Estonia (ipo2015.ee - not longer available)
IPO 2017, Rotterdam, The Netherlands