K. G. Beauchamp,Interlinking of computer networks.Interlinking of computer networks(1987 : France):proceedings of the NATO Advanced Study Institute held at Bonas, France, 1978..D. Reidel,1979.
K. G. Beauchamp,NATO Advanced Study Institute on Information Technology and the Computer Network.NATO Advanced Study Institute on Information Technology and the Computer Network ( 1983 : Bonas ):Information Technology and the Computer Network.Springer,1984.