Ge-intercalated graphene: The origin of the p-type to n-type transitionT. P. Kaloni, M. Upadhyay Kahaly, Y. C. Cheng and U. SchwingenschlöglEPL, 99 5 (2012) 57002DOI: https://doi.org/10.1209/0295-5075/99/57002
