Single-pulse and two-pulse echoes at multipulse excitation mode in   multidomain magnetic materials
  Properties of single-pulse and two-pulse echoes and their secondary echo signals as well as the role of reversible relaxation in the observed decays of echo signals at the multipulse excitation mode in a number of multidomain magnetic materials were studied. 
A.Akhalkatsi, T.Gegechkori, G.Katalandze, G.Mamniashvili, Z.Shermadini