L. S. Lobanovskii, V. M. Novotortsev, S. F. Marenkin, V. M. Trukhan, T. V. Shelkovaya, “Metamagnetism near $T_C$ in Mn-substituted chalcopyrite Cd$_{0.90}$Mn$_{0.10}$GeAs$_2$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 89:7 (2009), 391–395; JETP Letters, 89:7 (2009), 333–336
