13. Kampik A, Lund OE, Greite JH. Automatic Perimeter Octopus. A clinical comparison with the visual field device of Goldmann. Klin Mbl Augenheilk. 1979; 175: 72-81

13. Kampik A, Lund OE, Greite JH. Automatic Perimeter Octopus. A clinical comparison with the visual field device of Goldmann. Klin Mbl Augenheilk. 1979; 175: 72-81