Clark Jeffries. A New Conservation Law for Classical Electrodynamics. SIAM Review, 34(3):386-405, 1992. [doi]
@article{Jeffries92, title = {A New Conservation Law for Classical Electrodynamics}, author = {Clark Jeffries}, year = {1992}, doi = {10.1137/1034083}, url = {http://dx.doi.org/10.1137/1034083}, researchr = {https://researchr.org/publication/Jeffries92}, cites = {0}, citedby = {0}, journal = {SIAM Review}, volume = {34}, number = {3}, pages = {386-405}, }