TY  - RPRT
TI  - A survey of natural aggregate properties and characteristics important in remote sensing and airborne geophysics
AU  - D. H. Knepper
AU  - W. H. Langer
AU  - S. Miller
PY  - 1995
DO  - 10.1007/bf02257020
UR  - https://pubs.usgs.gov/publication/70019032
ID  - 70019032
ER  -