To the theory of interaction between electron and nuclear systems
  Coupled electron-nuclear oscillations in antiferromagnetics with anisotropy of "light plane" type in the strong external magnetic field are under consideration. The new mode \epsilon_{2k} of these coupled oscillations is obtained for antiferromagnetic systems by using "u-v"-Bogolubov?s unitary transformations. The dynamic shift of the frequency of nuclear magnetic resonance concerned with this mode is obtained. 
V. L. Marchenko and A. M. Savchenko (M. V. Lomonosov Moscow State   University)