TY  - RPRT
TI  - Binary modulation and transient periodic variations in X-ray emission from the AM Her binary H 0139 - 68
AU  - Singh, K. P.
AU  - Agrawal, P. C.
AU  - Riegler, G. R.
PY  - 1984
UR  - https://ntrs.nasa.gov/citations/19840053240
ID  - 19840053240
ER  -