Using the Statistical Machine Learning Models ARIMA and SARIMA to Measure the Impact of Covid-19 on Official Provincial Sales of Cigarettes in Spain. - Andoni Andueza; Miguel Ángel Del Arco-Osuna; Bernat Fornés; Rubén González Crespo; Juan-Manuel Martín-Álvarez (Int. J. Interact. Multim. Artif. Intell., 2023)