@INPROCEEDINGS {1006,
author={L.   Cancela and J. J. O.  Pires},
doi={},
booktitle={SPIE - All-optical Communication Systems: Architecture},
title={Multisource Crosstalk as a Function of Channel Frequency Spacing in an 8x8 Benes Optical Switch},
year={1998},
month={November},
volume={3531},
pages={328-336} 
}