@book{29188,
	author = {Potonié, Robert,},
	title = {Synopsis der Gattungen der Sporae dispersae.},
	publisher = {Amt für Bodenforschung,},
	year = {1956.},
	address = {Hannover :},
	note = {Other parts published in Heft 31, 39, 72, and 87.}
}