First measurement of the x-ray emission of Σ- atoms by means of a crystal-diffraction spectrometer Gur'ev, M. P. ; Denisov, A. S. ; Zhelamkov, A. V. ; Ivanov, Yu. M. ; Levchenko, P. M. ; Malakhov, V. D. ; Petrunin, A. A. ; Platonov, Yu. P. ; Sergeev, A. G. ; Smirnov, A. I. ; Suvorov, V. M. ; Fedin, O. L. Abstract Publication: ZhETF Pisma Redaktsiiu Pub Date: April 1993 Bibcode: 1993ZhPmR..57..389G