O. M. Vyaselev, M. V. Kartsovnik, N. D. Kushch, È. B. Yagubskii, “Staggered Spin Order of Localized $\pi$-electrons in the Insulating
State of the Organic Conductor $\kappa$-(BETS)$_2$Mn[N(CN)$_2$]$_3$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 95:11 (2012), 643–647; JETP Letters, 95:11 (2012), 565–569
