@book{23519,
	author = {Hansen, Johannes,},
	title = {Untersuchungen über den Preis des Getreides :},
	publisher = {Fischer,},
	year = {1887.},
	series = {Staatswissenschaftliche Studien ... / hrsg. von Ludwig Elster ;},
	address = {Jena :},
	note = {Appeared originally as author's inaugural dissertation, University of Jena, 1886.}
}