'A'
Title: Multiple-image hiding in the Fresnel domain
Author(s): Shi YS (Shi, Yishi), Situ GH (Situ, Guohai), Zhang JJ (Zhang, Jingjuan)
Source: OPTICS LETTERS 32 (13): 1914-1916 JUL 1 2007
Authors' addresses:
Grad Univ Chinese Acad Sci, Coll Phys Sci, Beijing, Peoples R China
Univ Coll Dublin, Coll Engn Math & Phys Sci, Sch Elect Elect & Mech Engn, Dublin 4, Ireland

'B'
Title: Optical implementation of iterative fractional Fourier transform algorithm
Author(s): Hahn J (Hahn, Joonku), Kim H (Kim, Hwi), Lee B (Lee, Byoungho)
Source: OPTICS EXPRESS 14 (23): 11103-11112 NOV 13 2006