TY  - RPRT
TI  - Submicroscopic spherules and color of tektites
AU  - A. N. Thorpe
AU  - F. E. Senftle
PY  - 1964
DO  - 10.1016/0016-7037(64)90045-6
UR  - https://pubs.usgs.gov/publication/70010489
ID  - 70010489
ER  -