@inproceedings{HuengerKositzDannebergetal.2019, author = {Klaus-J{\"u}rgen H{\"u}nger and Mario Kositz and Matti Danneberg and J{\"o}rg Radnik}, title = {XPS investigations on quartzite surfaces of natural rock samples for proof of Al exposure}, booktitle = {27th Annual Conference of the German Crystallographic Society / Zeitschrift f{\"u}r Kristallographie. Supplement}, volume = {39}, pages = {S. 110}, year = {2019}, }