1. Ackermann F (1981) Block adjustment with additional parameters. Photogrammetria 36(6): 217–227
2. Ackermann F (1983) High precision digital image correlation. Proceedings 39th photogrammetric week, Institut für Photogrammetrie, Stuttgart, Heft 9, pp 231–243
3. Ackermann F (1992) Kinematic GPS control for photogrammetry. Photogramm Rec 14(80): 261–276
4. American Society of Photogrammetry (2004) Manual of photogrammetry, 5th edn. American Society of Photogrammetry. Bethesda, Maryland, US
5. Atkinson KB (ed) (2003) Close range photogrammetry and machine vision. Whittless Pub, Dunbeath, Caithness, Scotland, UK