[21] G. Gbur, T. D. Visser. The structure of partially coherent fields. Progress in Optics, 55, 285-341(2010).
[27] J. Wang. Advances in communications using optical vortices. Photon. Res., 4, B14-B28(2016).
[42] L. Mandel, E. Wolf. Optical Coherence and Quantum Optics(1995).
[44] L. Chen, J. Lei, J. Romero. Quantum digital spiral imaging. Light Sci. Appl., 3, e153(2014).
[46] I. S. Gradshteyn, I. M. Ryzhik. Table of Integrals, Series, and Products(2007).