Zhenghao Zhang Yuanyuan Yang Optical Packet Switches Enhanced with Electronic Buffering and Fixed Wavelength Conversion. 179-191 2007 conf/teletraffic/2007 International Teletraffic Congress http://dx.doi.org/10.1007/978-3-540-72990-7_19 db/conf/teletraffic/itc2007.html#ZhangY07