@article {wiedeman1983papyrus,
	title = {Papyrus The Paper of Ancient Egypt},
	journal = {Analytical chemistry},
	volume = {55},
	number = {12},
	year = {1983},
	pages = {1220A{\textendash}1230A},
	publisher = {ACS Publications},
	author = {Wiedeman, HG and Bayer, G}
}
