TY  - RPRT
TI  - Engineering calculations for communications systems planning
AU  - Levis, C. A.
AU  - Martin, C. H.
AU  - Wang, C. W.
AU  - Gonsalvez, D.
PY  - 1982
UR  - https://ntrs.nasa.gov/citations/19830014223
ID  - 19830014223
ER  -