@misc{indiciaed556ae136762,
  title = {Methods for the mineralogical and textural analysis of comet nucleus samples},
  author = {Stoeffler, D. and Dueren, H. and Knoelker, J.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900007332},
  note = {Source identifier: 19900007332}
}