Hue, L. T., D. P. Khoi, H. H. Phuong, and H. T. Hung. “Lepton Flavor Violation in Economical 3-3-1 Model With Neutrino Singlets”. Communications in Physics, vol. 29, no. 1, Mar. 2019, p. 87, doi:10.15625/0868-3166/29/1/13556.