JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, vol. 219, page. 86 - 91, 2017-08
NANO LETTERS, vol. 17, no. 3, page. 1610 - 1615, 2017-03
NANO LETTERS, vol. 15, no. 12, page. 7788 - 7793, 2015-12
SCIENCE, vol. 349, no. 6249, page. 723 - 726, 2015-08-14