Fizika Tverdogo Tela, 1984 Volume 26, Issue 5,Pages 1297–1305(Mi ftt2861)
Some peculiarities of antiferromagnetic resonance in rhombic antiferromagnets with dzyaloshinskii interaction $(\mathrm{C}_{2}\mathrm{H}_{5}\mathrm{NH}_{3})_{}2\cdot \mathrm{CuCl}_{4}$