SOFT X-RAY LASER CAVITIES N.M. CEGLIO, D.G. STEARNS, A.M. HAWRYLUK, T.W. BARBEE, K. DANZMANN, M. KUHNE, P. MUELLER, B. WENDE, M.B. STEARNS, A.K. PETFORD-LONG and C.-H. CHANG J. Phys. Colloques, 47 C6 (1986) C6-277-C6-286 DOI: 10.1051/jphyscol:1986635