1.
López-Bonilla J, Vidal Beltrán S, Yalja Montiel J. A note on Dirichlet and Fejér kernels. RMTA [Internet]. 25feb.2009 [citado 16nov.2019];14(1):101-4. Available from: https://revistas.ucr.ac.cr/index.php/matematica/article/view/283