@book{37405,
	author = {Outer, R. W. den. and Vooren, A. P.},
	title = {Bark anatomy of some Sarcolaenaceae and Rhopalocarpaceae and their systematic position},
	publisher = {Veenman and Zone,},
	year = {1980},
	series = {Mededelingen landbowhogeschool},
	address = {Wageningen :}
}