Nga, Pham Thi Thanh, and Nguyen Toan Thang. “On the Spin Liquid States of the Fermionized Heisenberg Antiferromagnetic on Triangular Lattice”. <i>Communications in Physics</i>, vol. 20, no. 4, Aug. 2012, p. 295, doi:10.15625/0868-3166/20/4/2284.