Serpa G, Zumba X, Montalvo F, Baño D, Martinez J, Zambrano I. Influence of the type of spark plug in the evaluation of the performance and emissions caused in an ignition engine. Enfoque UTE [Internet]. 2019 Jun. 28 [cited 2024 Nov. 7];10(2):pp. 115 - 125. Available from: http://ingenieria.ute.edu.ec/index.php/revista/article/view/465