Breaking the flow: Intervention in computer game play through physical and Intervention in computer game play through physical and on-screen interaction. - Berry Eggen; Loe M. G. Feijs; Mark de Graaf; Peter Peters 002 (DiGRA Conference, 2003)

A Design Approach to Decentralized Interactive Environments. - Harm van Essen; Pepijn Rijnbout; Mark de Graaf (INTETAIN, 2009)

i-PE: A Decentralized Approach for Designing Adaptive and Persuasive Intelligent Play Environments. - Pepijn Rijnbout; Linda De Valk; Mark de Graaf; Tilde Bekker; Ben A. M. Schouten; Berry Eggen (AmI Workshops, 2011)

First International Workshop on Ambient Gaming (AmGam'11). - Janienke Sturm; Stine Liv Johansen; Mark de Graaf; Ben A. M. Schouten (AmI, 2011)

Guidelines to Design Interactive Open-ended Play Installations for Children Placed in a Free Play Environment. - Gordon Tiemstra; Renée van den Berg; Tilde Bekker; Mark de Graaf (DiGRA Conference, 2011)

ZooMor: Three Stages of Play for a Sleeping Creature. - Daniël van Paesschen; Mark de Graaf; Tilde Bekker (Advances in Computer Entertainment, 2013)

GlowSteps - A Decentralized Interactive Play Environment for Open-Ended Play. - Linda De Valk; Pepijn Rijnbout; Mark de Graaf; Tilde Bekker; Ben A. M. Schouten; Berry Eggen (Advances in Computer Entertainment, 2013)

About Experience and Emergence - A Framework for Decentralized Interactive Play Environments. - Pepijn Rijnbout; Linda De Valk; Arnold P. O. S. Vermeeren; Tilde Bekker; Mark de Graaf; Ben A. M. Schouten; Berry Eggen (INTETAIN, 2013)

Investigating Perspectives on Play: The Lenses of Play Tool. - Tilde Bekker; Linda De Valk; Pepijn Rijnbout; Mark de Graaf; Ben A. M. Schouten; Berry Eggen (CHI PLAY, 2015)

The Richness of Open-ended Play - Rules, feedback and adaptation mechanisms in intelligent play environments. - Pepijn Rijnbout; Mark de Graaf; Ben A. M. Schouten (EAI Endorsed Trans. Collab. Comput., 2015)

The introduction of IMO, an integrated model for designing for open-ended play. - Pepijn Rijnbout; Mark de Graaf; Tilde Bekker; Ben A. M. Schouten (Entertain. Comput., 2016)