Yu. M. Smirnov
      Excitation of doublet F-levels of a lutetium atom by electron impact
      Advances in Applied Physics, Vol. 3, 2015, no. 1, 35-45
      http://dx.doi.org/10.12988/aap.2015.587
Copyright © 2015 Yu. M. Smirnov. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.