@incollection{Ni12,
author = {Wei-Tou Ni},
title = {Foundations of Electromagnetism, Equivalence Principles and Cosmic Interactions},
booktitle = {Trends in Electromagnetism},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Victor Barsan and Radu P. Lungu},
chapter = {3},
doi = {10.5772/34537},
url = {https://doi.org/10.5772/34537}
}