Y. Lin, B. Yu, A. Hall, и B. Hecht. Proceedings of the 2017 ACM Conference on Computer Supported Cooperative Work and Social Computing, стр. 2052--2067. New York, NY, USA, ACM, (2017)
C. Barbosa. Pontifical Catholic University of Rio de Janeiro, Brazil, (1999)ndltd.org (oai:agregador.ibict.br.BDTD_PUC_RIO:oai:MAXWELL.puc-rio.br:8104).