K.
Lemons
Marino, A. M., Boyer, V. ., Pooser, R. C., Lett, P. D., Lemons, K. ., & Jones, K. M. (2008). Delocalized correlations in twin light beams with orbital angular momentum. Physical Review Letters, 101. http://doi.org/10.1103/PhysRevLett.101.093602