Text and Data Mining valid from 2019-07-01
First Online: 30 July 2019
Change Date: 11 October 2019
Change Type: Erratum
Change Details: The names of the authors were incorrect in the published paper and should be revised as “Patricia Fernandez-Waid, Guzman Diez, Iñigo Bidaguren, Urtzi Izagirre, Jesus Maria Blanco, Manu Soto”.