V. A. Bedarev, V. I. Gapon, S. L. Gnatchenko, M. Baran, R. Szymczak, J. M. Desvignes, and H. Le Gall, Effect of light illumination on antiferromagnet-metamagnet phase transitions in the garnet Ca₃Mn₂Ge₃O₁₂, Low Temp. Phys. 28, (2001) [Fiz. Nizk. Temp. 28, 51-60, (2001)] DOI: https://doi.org/10.1063/1.1449183.