Weichselbaumer, Stefan; Zens, Matthias; Zollitsch, Christoph W.; Brandt, Martin S.; Rotter, Stefan; Gross, Rudolf; Huebl, Hans: Echo Trains in Pulsed Electron Spin Resonance of a Strongly Coupled Spin Ensemble. 2020Physical Review Letters: 125. https://doi.org/10.1103/PhysRevLett.125.137701