Per Helmersen

No bio available. Add one in Open Library.

Books by Per Helmersen (50 max)

+ shelf+ list

Human-Computer Interaction: Interact '95 (IFIP International Federation for Information Processing)

2007

Svein Arnesen, David Gilmore, Per Helmersen, Knut Nordby

+ shelf+ list

Family interaction and communication in psychopathology: an evaluation of recent perspectives

1983

Per Helmersen

+ shelf+ list

Human-Computer Interaction Interact '95

1996

Knut Nordby, Per Helmersen, David Gilmore, Svein Arnesen