References
- Petrig B, Julez B, Lehmann D, Lang J: Assessment of Stereopsis in Infants and Children, Using Dynamic Random-Dot Pattern Evoked Potentials. Documenta Proceedings Series 31: Techniques in Clinical Electrophysiology of Vision, The Hague, Dr. W. Junk Publishers, 1982, pp. 477–482.
- Hess WR: Direkt wirkende Stereoskopbilder. Zeitschrift für wissenschaftliche Photographic Photophysik und Photochemie, 1914; 14:34–38.
- Lang J: A New Stereotest. J Pediatr Ophthalmol Strabismus, 1983; 20:72–74.
- Lang J: A New Fixation Device: The Lang Fixation Cube, Binocular Vision, 1987; 2:157.
- Lang J: The Fourth Image of Purkinje and the Lang Stereotest. Two new tools in diagnosing microtropia. Transactions of the 14th. ESA Meeting, Copenhagen 1984, pp. 309–314.
- Lang Th.: Der Lang-Stereotest. Entwicklung, Experimente und klmische Untersuchungen. Dissertation, Zurich, 1985.