@misc{indiciaec3eba699d9ea,
  title = {EISCAT observations during MAC/SINE and MAC/Epsilon},
  author = {Roettger, J. and Hoppe, U.-P. and Hall, C.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890020537},
  note = {Source identifier: 19890020537}
}