The 2p4 3P1,2-2p33s 5S20 and 2p4 3P1,2-2s2p5 3P20 transitions in the oxygen isoelectronic sequence C. Froese Fischer, X. He and P. Jönsson Eur. Phys. J. D, 4 3 (1998) 285-289 Published online: 15 December 1998 DOI: 10.1007/s100530050211