@article {zigler1987use,
	title = {Use of multilayer targets to inject trace elements into laser-produced plasma},
	journal = {Applied physics letters},
	volume = {50},
	number = {17},
	year = {1987},
	pages = {1133{\textendash}1134},
	publisher = {American Institute of Physics},
	author = {Zigler, A and Kolbe, J and Lee, RW}
}
