@misc{indiciaeec0343768313, title = {Electron beams from a duoplasmatron using a hollow cathode arc as electron source}, author = {Bennett, W. H. and Cox, J. L., Jr. and Roberts, A. S., Jr.}, year = {1966}, url = {https://ntrs.nasa.gov/citations/19660059116}, note = {Source identifier: 19660059116} }