1. Static perimetry: accuracy and fluctuations;Bebie;Acta ophthal. (Kbh.),1976
2. Single and multiple stimulus static perimetry in glaucoma, the two phases of perimetry;Greve;Docum. ophthal.,1973
3. Automatic perimetry in glaucoma visual field screening. A clinical study;Heijl;Albrecht v. Graefes Arch. Ophthal.,1976
4. Time changes of contrast thresholds during automatic perimetry;Heijl;Acta ophthal. (Kbh.),1977
5. An automatic static perimeter, design and pilot study;Heijl;Acta ophthal. (Kbh.),1975a