1. Initial Stages in the Design of a Ruling Engine;Dyson,1970
2. The Diffraction Grating — An Opinionated Appraisal;Harrison;Applied Optics,1973
3. Diffraction Gratings;Palmer;Rep. Prog. Phys.,1975
4. Recent Advances in Diffraction Grating Production and Applications;Loewen,1981
5. Ruling Engine with Hydraulic Drive