On Swap Systems.

@article {688,
	title = {On Swap Systems.},
	year = {1997},
	note = {In: J. Graham, D.-G. Shin (eds.): Intelligent Systems. Proceedings of the 6th International Conference on Intelligent Systems. Boston, Mass., June 11-13, 1997. Raleigh, N.C.: International Society for Computers and Their Applications 1997, 32-36 [ISBN 1-880843-20-X]},
	author = {W. Dosch}
}