@INPROCEEDINGS { AUTHOR = "Andre Hora and Marco Tulio Valente and Romain Robbes and Nicolas Anquetil", TITLE = "When Should Internal Interfaces be Promoted to Public?", EDITOR = "T. Zimmermann and J. Cleland-Huang and Z. Su", BOOKTITLE = "24th ACM SIGSOFT Symposium on Foundations of Software Engineering (FSE)", PAGES = "278-289", MONTH = "Nov", YEAR = "2016", ADDRESS = "Seattle, USA", PUBLISHER = "ACM Press", ISBN = "978-1-4503-4218-6", }