Pittsburgh 2011 Problems of the Ninth International Linguistics Olympiad Summary » Full Results » Participants » Individual Contest Menominee Faroese Vai Nahuatl EAN-13 Problems Bulgarian Dutch English (A) English (B) Estonian Polish Portuguese Russian Serbian Slovenian Swedish Solutions Bulgarian Dutch English (A) English (B) Estonian Polish Portuguese Russian Serbian Slovenian Swedish Team Contest Sanskrit Poetry Problems Bulgarian Dutch English (A) English (B) Estonian Polish Portuguese Russian Serbian Slovenian Swedish Solutions Bulgarian Dutch English (A) English (B) Estonian Polish Portuguese Russian Serbian Slovenian Swedish