M. Cicalese, M. Forster, G. Orlando:
Variational analysis of a two-dimensional frustrated spin system:  emergence and rigidity of chirality transitions
SIAM J. Math. Anal. Vol. 51, N. 2, p. 4848-4893, 2019

M. Cicalese, M. Forster, G. Orlando:
Variational analysis of the $J_1$-$J_2$-$J_3$ model: a non-linear lattice version of the Aviles-Giga functional
Arch. Ration. Mech. anal. Vol. 245, N. 2, p. 11351196, 2022