@phdthesis {Campos-thesis-90,
	title = {Performance Bounds for Synchronized Queueing Networks},
	year = {1990},
	month = {10},
	type = {phd},
	url = {http://webdiis.unizar.es/CRPetri/papers/jcampos/thesis.pdf},
	author = {J. Campos}
}

