A case study in pervasive game design: the songs of north. - Petri Lankoski; Satu Heliö; Jani Nummela; Jussi Lahti; Frans Mäyrä; Laura Ermi (NordiCHI, 2004)

Designing sound for a pervasive mobile game. - Inger Ekman; Laura Ermi; Jussi Lahti; Jani Nummela; Petri Lankoski; Frans Mäyrä (Advances in Computer Entertainment Technology, 2005)

Designing Immersive Sound for a Pervasive Mobile Game. - Inger Ekman; Jussi Lahti; Jani Nummela; Petri Lankoski; Frans Mäyrä (DiGRA Conference, 2005)