G. K. Chang, M. Z. Iqbal, E. Ellinas, H. Shirokman, J. C. Young, R. R. Cordell, C. A. Brackett, J. H. Schaffner, G. L. Tangonan, and J. L. Pikulski, "Subcarrier multiplexing and ATM/SONET clear-channel transmission in a reconfigurable multiwavelength all-optical network test bed,"
in Optical Fiber Communications Conference,
Vol. 8 of 1995 OSA Technical Digest Series
(Optical Society of America, 1995), paper ThI1.