Title: The Ray and Wave Theory of Lenses, Author: A. Walther
Title: The Mathematical Papers of Sir William Rowan Hamilton: Volume 4: Geometry, Analysis, Astronomy, Probability and Finite Differences, Miscellaneous, Author: William Rowan Hamilton
Title: Geometrical Theory of Diffraction for Electromagnetic Waves, Author: Graeme L. James
Title: Geometric Optics on Phase Space, Author: Kurt Bernardo Wolf
Title: Geometrical Optics and Related Topics, Author: Ferrucio Colombini
Title: Caustics, Catastrophes and Wave Fields, Author: Yu.A. Kravtsov