1. V. G. Baryshevsky, Nucl. Instrum. Methods B, 402, 5 (2017).
2. L. Burmistrov, G. Calderini, Yu. Ivanov, et al., CERN-SPSC-2016-030 (2016).
3. G. M. Gurevich, A. A. Lukhanin, F. Maas, et al., Proceedings of the XVIth International Workshop in Polarized Sources, Targets, and Polarimetry PSTP2015, Bochum, PoS (PSTP2015)043.
4. A. Mazzolari, E. Bagli, L. Bandiera, et al., Phys. Rev. Lett., 112, 135503 (2014).
5. U. Wienands, T. W. Markiewicz, J. Nelson, et al., Phys. Rev. Lett., 114, 074801 (2015).