@article{FosterOL2004,
	Author = {David H. Foster and Jens U. N{\"o}ckel},
	Journal = {Opt. Lett.},
	Month = {Dec},
	Number = {23},
	Pages = {2788--2790},
	Title = {Bragg-induced orbital angular-momentum mixing in paraxial high-finessecavities},
	Volume = {29},
	Year = {2004}}