Soa, D.V., Thao, N.H., Dong, P.V., Huong, T.T. and Long, H.N. 2008. Neutrinoless double beta decay in the economical 3-3-1 model. Communications in Physics. 18, 1 (Jul. 2008), 9–18. DOI:https://doi.org/10.15625/0868-3166/18/1/10685.