CW X-RAY PREIONIZED PULSED GAS LASERS T. Arai, Y. Mori, Y. Imai, K. Sugino, M. Obara et T. Fujioka J. Phys. Colloques, 41 C9 (1980) C9-237-C9-242 DOI: 10.1051/jphyscol:1980931