@book {1693,
	title = {Mineral Nutrition of Higher Plants},
	series = {Mineral Nutrition of Higher Plants},
	volume = {2},
	year = {2005},
	pages = {672},
	publisher = {Acadmic Press Inc},
	organization = {Acadmic Press Inc},
	author = {Marschner, H.}
}
@book {84,
	title = {Mineral nutrition of higher plants. Second Edition},
	year = {1995},
	publisher = {Academic Press Ltd.},
	organization = {Academic Press Ltd.},
	author = {Marschner, H.}
}
@article {204,
	title = {Mechansims of adaptions of plants to acid soils},
	journal = {Plant and Soil},
	volume = {134},
	year = {1991},
	pages = {1-20},
	author = {Marschner, H.}
}
