@misc{indiciae10a05ae3ce6c,
  title = {The direct observation of unidirectional solidification as a function of gravity level},
  author = {Johnston, M. H. and Griner, C. S. and Parr, R. A. and Robertson, S. J.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810051143},
  note = {Source identifier: 19810051143}
}