@misc{indiciaea697d8a507ee,
  title = {Stationary dust-filled cosmological solution with lambda equal 0 and without closed timelike lines.},
  author = {Maitra, S. C.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660056879},
  note = {Source identifier: 19660056879}
}