@book{109265,
	author = {Vet, Co. and ebrary, Inc.},
	title = {Tense and aspect in discourse},
	publisher = {M. de Gruyter,},
	year = {1994.},
	series = {Trends in linguistics. Studies and monographs ;},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10597470}
}