TY  - RPRT
TI  - Ultrahigh Energy Gamma-rays
AU  - Strong, A. W.
AU  - Wdowczyk, J.
AU  - Wolfendale, A. W.
PY  - 1973
UR  - https://ntrs.nasa.gov/citations/19730020034
ID  - 19730020034
ER  -