Interstellar absorption of 10-angstrom X-rays.
Interstellar absorption of 10 A X rays from sources in Scorpio-Sagittarius region, noting gas density between earth and Crab Nebula
Bradt, H. V.↗
Engineering topics
Publications and source records attributed to Rappaport, S. E..
Interstellar absorption of 10 A X rays from sources in Scorpio-Sagittarius region, noting gas density between earth and Crab Nebula