Astrometric search for unseen stellar and sub-stellar companions to nearby stars and the possibility of their detection Sarah Lee Lippincott OriginalPaper Pages: 153 - 189
The importance of spectroscopy in the 80–800 å region for plasma diagnostics in the solar atmosphere U. FeldmanG. A. DoschekW. E. Behring OriginalPaper Pages: 191 - 212
