Camera Control in a Planar, Graspable Interface. - Morten Fjeld; Nicholas Ironmonger; Fred Voorhorst; Martin Bichsel; Matthias Rauterberg (Applied Informatics, 1999)

Exploring brick-based camera control. - Morten Fjeld; Fred Voorhorst; Martin Bichsel; Helmut Krueger (HCI (2), 1999)

User-friendly by making the interface graspable. - Fred Voorhorst; Helmut Krueger (HCI (1), 1999)

Exploring Brick-Based Navigation and Composition in an Augmented Reality. - Morten Fjeld; Fred Voorhorst; Martin Bichsel; Kristina Lauche; Matthias Rauterberg; Helmut Krueger (HUC, 1999)

Navigation methods for an augmented reality system. - Morten Fjeld; Fred Voorhorst; Martin Bichsel; Helmut Krueger; Matthias Rauterberg (CHI Extended Abstracts, 2000)

Menus beyond the desktop metaphor. - Fred Voorhorst; Helmut Krueger; Martin Bichsel (CHI Extended Abstracts, 2000)

Physical and Virtual Tools: Activity Theory Applied to the Design of Groupware. - Morten Fjeld; Kristina Lauche; Martin Bichsel; Fred Voorhorst; Helmut Krueger; Matthias Rauterberg (Comput. Support. Cooperative Work., 2002)

Towards Guidelines for Touch Screen Design: Perception of Button Form and Extension. - Morten Fjeld; Hans-Jörg Zuberbühler; Sissel Guttormsen Schär; Fred Voorhorst (INTERACT, 2003)

Mini Factory: A Successful Model for European Furniture Industry? - Marco Seregni; David Opresnik; Christian Zanetti; Marco Taisch; Fred Voorhorst (APMS (3), 2014)