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  Eichler, J.: Electron-positron pair production in relativistic ion-atom collisions. Physics Letters A 347 (2005), p. 67-72

10.1016/j.physleta.2005.06.105

Abstract:
The creation of electron-positron pairs constitutes an example for the conversion of energy into mass. We here give a brief outline of the various processes and theoretical approaches in a simple fashion. We point out some recent results and difficulties that have to be overcome.