Radiative corrections to the magnetic-dipole transition amplitude in   B-like ions
  The one-electron quantum-electrodynamic corrections to the magnetic-dipole transition amplitude between the fine-structure levels (1s^2 2s^2 2p) ^2P_3/2 - ^2P_1/2 in boronlike ions are calculated to all orders in (\alpha Z). The results obtained serve for improving the theoretical accuracy of the lifetime of the (1s^2 2s^2 2p) ^2P_3/2 level in boronlike argon. 
A. V. Volotka, D. A. Glazov, G. Plunien, V. M. Shabaev, and I. I.   Tupitsyn