Repertory Hypergrids: An Application to Clinical Practice Guidelines. - David Madigan; C. Richard Chapman; Jonathan Gavrin; Ole Villumsen; John Boose (ECHT, 1994)

Repertory hypergrids for large-scale hypermedia linking. - David Madigan; C. Richard Chapman; Jonathan Gavrin; Ole Villumsen; John Boose (Int. J. Hum. Comput. Stud., 1995)