Physics Olympiad

http://ipho2013.dk/IPhO2013_E2_solution.pdf

http://www.ipho2013.dk/IPhO_2013_Physics_Today_66_25_2013.pdf

http://ipho2013.dk/IPhO_2013_Final_Report.pdf

http://ipho2013.dk/IPhO2013_T1_solution.pdf

http://ipho.phy.ntnu.edu.tw/news/2010-11-20%20IPhO%20-%20An%20anlysis%20of%20past%20Olympiad%20problems%20FINAL%28Kotlicki%29.pdf

http://link.springer.com/article/10.1007/BF02834650#page-1

http://www.physics.ox.ac.uk/olympiad/downloads/uyp/upgrade_your_physics.pdf

http://micro-kosmos.uoa.gr/gr/announcments/pdf/IPhO_25_Th&Exp_1994_sol.pdf