@book{28780,
	author = {Bulmerincq, August Michael von},
	title = {Aktenstücke und Urkunden zur Geschichte der Stadt Riga 1710-1740.},
	publisher = {[wydawca nieznany],},
	year = {1906.},
	address = {Riga :},
	url = {http://kpbc.umk.pl/publication/21582}
}