Barros, L.C., Oliveira Souza, S.A. and Tonelli, P.A. 2017. A note on asymptotic smoothness of the extensions of Zadeh. Proyecciones (Antofagasta, On line). 21, 2 (May 2017), 141-153. DOI:https://doi.org/10.4067/S0716-09172002000200003.