Ulrich, C., & Barreto, S. (2012). A corpus-based study of anaphora related to indefinite pronouns. BELT - Brazilian English Language Teaching Journal, 3(1). Retrieved from https://revistaseletronicas.pucrs.br/index.php/iberoamericana/N%25EF%25BF%25BD%25EF%25BF%25BDO%2520https:/www.scimagojr.com/index.php/belt/article/view/10332