@incollection{10.1007/978-3-642-22161-3_9, author = "Alfons van den Kerkhof and Axel M{\"u}ller", booktitle = "Quartz: Deposits, Mineralogy and Analytics", doi = "10.1007/978-3-642-22161-3_9", editor = "G{\"o}tze, Jens and M{\"o}ckel, Robert", isbn = "978-3-642-22160-6", pages = "191-217", publisher = "Springer Berlin Heidelberg", series = "Springer Geology", title = "{A}nalysis of {L}ow {E}lement {C}oncentrations in {Q}uartz by {E}lectron {M}icroprobe", url = "http://dx.doi.org/10.1007/978-3-642-22161-3_9", year = "2012", }