@PRESENTATION{vetterlein2009,
	title     = {On vagueness and granularity},
	author    = {Thomas Vetterlein},
	year      = {2009},
	month     = {September},
	booktitle = {Conference on Logical Models of Reasoning with Vague Information},
	state     = {published},
	acknowledged= {1},
	talk      = {1}
}