PHELPS, Sue F. Implementation of Proactive Chat Increases Number and Complexity of Reference Questions. Evidence Based Library and Information Practice, [S. l.], v. 12, n. 2, p. 172–174, 2017. DOI: 10.18438/B85370. Disponível em: https://journals.library.ualberta.ca/eblip/index.php/EBLIP/article/view/29062. Acesso em: 20 apr. 2024.