@misc{indiciaeadc4b1886802,
  title = {Rb-Sr systematics for chemically defined Apollo 15 and 16 materials},
  author = {Nyquist, L. E. and Hubbard, N. J. and Jahn, B. and Bansal, B. M. and Wiesmann, H. and Gast, P. W.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740040177},
  note = {Source identifier: 19740040177}
}