Dan M.  Marom, Neilson, David T. , Member, OSA , Greywall, Dennis S. , Pai, Chien-Shing , Basavanhally, Nagesh R. , Aksyuk, Vladimir A. , López, Daniel O. , Pardo, Flavio , Simon, Maria Elina , Low, Yee , Kolodner, Paul , and Bolle, Cristian A.. 2005. ?Wavelength-Selective 1 X K Switches Usingfree-Space Optics And Mems Micromirrors:theory, Design, And Implementation?. Journal Of Lightwave Technology, 23, 4, Pp. 1620-1630. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1424138.