TY  - GEN
AU  - Ellerbruch, Doyle A
AU  - Belsher, Donald R
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1976-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.IR.76-840
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1976
TI  - FM-CW electromagnetic technique of measuring coal layer thickness:
ER  -