BibTex format
@inproceedings{Tsangaris:2003:10.1109/CLEOE.2003.1312185,
author = {Tsangaris, CL and New, GHC and Rogel-Salazar, J},
doi = {10.1109/CLEOE.2003.1312185},
title = {Unstable Bessel beam resonator},
url = {http://dx.doi.org/10.1109/CLEOE.2003.1312185},
year = {2003}
}