1. Third supplement to an essay on the theory of systems of rays;Hamilton;Trans. R. Irish Acad.,1837
2. On the phenomena presented by light in its passage along the axes of biaxial crystals;Lloyd;Phil. Mag.,1833
3. Chap. 11;Landau,1984
4. Chap. 15;Born,1999
5. Internal conical refraction of bounded light beams in biaxial crystals;Belsky;Opt. Spectrosc.,1978