1. A laser-based technique for alignment and deflection measurement;Harrison;Civil Eng,1973
2. Laser alignment technique;Opt Laser Technol,1973
3. Versatile electro-optic alignment system for field applications;New;Appl Opt,1974
4. Geometrical and Physical Optics;Longhurst,1967
5. Testing the straightness of slideways and of flat surfaces with the aid of the rule;Cuny;Microtecnic,1950