The word "firm" appears in the following articles by David Keuning:
Frame: On goths & gables (FAT) (3)
Netherlands Institute for Sound and Vision: Introduction (3)
Mark: No fooling about (Next Architects) (3)
Mark: Punishment and Praise (Bernard Colenbrander) (1)
Netherlands Institute for Sound and Vision: Portrait (Neutelings Riedijk) (1)
Netherlands Institute for Sound and Vision: Portrait (Edwin van Huis) (1)