@incollection{Li12,
author = {X. Li and D.M. Pierce and H.F. Arnoldus},
title = {Vortices in Electric Dipole Radiation},
booktitle = {Electromagnetic Radiation},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Saad Osman Bashir},
chapter = {4},
doi = {10.5772/34625},
url = {https://doi.org/10.5772/34625}
}