BibTex format
@article{Holgate:2017:10.1103/PhysRevApplied.7.044019,
author = {Holgate, JT and Coppins, M},
doi = {10.1103/PhysRevApplied.7.044019},
journal = {PHYSICAL REVIEW APPLIED},
title = {Field-Induced and Thermal Electron Currents from Earthed Spherical Emitters},
url = {http://dx.doi.org/10.1103/PhysRevApplied.7.044019},
volume = {7},
year = {2017}
}