@misc{indiciaeed73c4d27a67, title = {Activation analysis for selected elements in micrometeorites and hypervelocity projectiles Annual progress report, 1 Jul. 1969 - 1 Jul. 1970}, author = {Cooper, T. and Schmitt, R. A.}, year = {1970}, url = {https://ntrs.nasa.gov/citations/19710003724}, note = {Source identifier: 19710003724} }