Referencias.

https://biblioteca.ulpgc.es/google_academico
https://es.slideshare.net/SteevenSantiagoRamos/authorea
https://www.authorea.com/users/227557-ana-hern%C3%A1ndez-piedra
http://sci-hub.tw/https://www.icevirtuallibrary.com/doi/full/10.1680/jgeot.16.P.233
https://scimagojr.com/index.php
https://ktoolsacademy.com/que-es-el-scimago-journal-rank-sjr/