BibTex format
@article{Gratus:2017:10.1007/s00339-016-0649-8,
author = {Gratus, J and Kinsler, P and Letizia, R and Boyd, T},
doi = {10.1007/s00339-016-0649-8},
journal = {APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING},
title = {Electromagnetic mode profile shaping in waveguides},
url = {http://dx.doi.org/10.1007/s00339-016-0649-8},
volume = {123},
year = {2017}
}