Valenzuela Toledo, C.A., Beltrán Almeida, J. and Motoa-Manzano, J. 2016. de Sitter symmetries and inflationary scalar-vector models. Universitas Scientiarum. 21, 3 (Oct. 2016), 219–243. DOI:https://doi.org/10.11144/Javeriana.SC21-3.dssa.