@book{22933,
	author = {Bragt, J. Van.},
	title = {Effects of sterilization on components in nutrient media, papers presented at a symposium...},
	publisher = {Veenman & Zonen,},
	year = {1971},
	series = {Landbouwhogeschool. Miscellaneous papers},
	address = {Wageningen :}
}