Before revision: Nuclear spectroscopy The local structure, the structure of the nearest neighbour atoms, of condensed matter can be investigated with methods of nuclear spectroscopy , which are very sensitive to small changes.
After revision: Magnetic resonance spectroscopy The local structure, the structure of the nearest neighbour atoms, of condensed matter can be investigated in condensed matter with magnetic resonance methods, such as electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR)as well as , which are very sensitive to small changes.