References
- HARBURN , G. , RANNIKO , J. K. and WILLIAMS , R. P. 1977 . Optik , 48 : 321
- CHUGUI , YU. V. , KORONKEVITCH , V. P. , KRIVENKOV , B. E. and MIKHLYAEV , S. V. 1981 . J. opt. Soc. Am. , 71 : 483
- BORN , M. and WOLF , E. 1970 . Principles of Optics , Fourth edition , Oxford : Pergamon Press . Chap. VIII