@misc{indiciaeec7c02109cb2,
  title = {Helicon Plasma Source Optimization Studies for VASIMR},
  author = {Goulding, R. H. and Baity, F. W. and Barber, G. C. and Carter, M. D. and ChangDiaz, F. R. and Pavarin, D. and Sparks, D. O. and Squire J. P.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20000092092},
  note = {Source identifier: 20000092092}
}