New experimental limits on neutron – mirror neutron oscillations in the presence of mirror magnetic fieldZ. Berezhiani, R. Biondi, P. Geltenbort, I. A. Krasnoshchekova, V. E. Varlamov, A. V. Vassiljev and O. M. ZherebtsovEur. Phys. J. C, 78 9 (2018) 717DOI: https://doi.org/10.1140/epjc/s10052-018-6189-y