@misc{indiciae6131554f514c,
  title = {Lunar surface engineering properties experiment definition},
  author = {Mitchell, J. K. and Goodman, R. E. and Hurlbut, F. C. and Houston, W. N. and Willis, D. R. and Witherspoon, P. A. and Hovland, H. J.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720006175},
  note = {Source identifier: 19720006175}
}