Partridge, Craig; Blumenthal (March 2006). "Data Networking at BBN". IEEE Annals of the History of Computing. 28 (1): 63. doi:10.1109/MAHC.2006.7. S2CID16881178.
Partridge, Craig; Blumenthal (March 2006). "Data Networking at BBN". IEEE Annals of the History of Computing. 28 (1): 63. doi:10.1109/MAHC.2006.7. S2CID16881178.