The Vowel Game: Continuous Real-Time Visualization for Pronunciation Learning with Vowel Charts. - Annu Paganus; Vesa-Petteri Mikkonen; Tomi Mäntylä; Sami Nuuttila; Jouni Isoaho; Olli Aaltonen; Tapio Salakoski (FinTAL, 2006)

Designing Reality Guides. - Tomi Mäntylä; Ilmari Lahti; Harri Ketamo; Mika Luimula; Jouni Smed (VS-GAMES, 2014)