@misc{indiciae56ba98ad9e60,
  title = {Relation between microstructural heterogeneous surface layer and nitrogen pressure during sintering in Si3N4-Ml2O3 ceramics},
  author = {Hayashi, K. and Onomura, Y.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860020516},
  note = {Source identifier: 19860020516}
}