@misc{indiciae5e1058294acb,
  title = {Liquid ethylene-propylene copolymers},
  author = {Rhein, R. A. and Ingham, J. D. and Humphrey, M. F.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750000207},
  note = {Source identifier: 19750000207}
}