TY  - RPRT
TI  - Remote sensing of urban environments.
AU  - Alexander, R. H.
AU  - Bowden, L. W.
AU  - Marble, D. F.
AU  - Moore, E. G.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19690049023
ID  - 19690049023
ER  -