@inproceedings{MPRU06,
	author = {M. Mousavi and I.C.C. Phillips and M.A. Reniers and I. Ulidowski},
	title     = {The Meaning of {O}rdered {SOS}},
	editor    = {S. Arun-Kumar and Naveen Garg},
	booktitle = {Proceedings of the 26th International Conference of Foundations
		        of Software Technology and Theoretical Computer Science FSTTCS 2006},
	year      = {2006},
	publisher = {Springer},
	series    = {LNCS},
	volume    = {4337},
	pages     = {333-344}
}