M. Chevalier-Boisvert, and M. Feeley. 29th European Conference on Object-Oriented Programming (ECOOP 2015), volume 37 of Leibniz International Proceedings in Informatics (LIPIcs), page 101--123. Dagstuhl, Germany, Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, (2015)
P. Rein, S. Lehmann, T. Mattis, and R. Hirschfeld. Proceedings of the Programming Experience 2016 (PX/16) Workshop, page 1--8. New York, NY, USA, ACM, (2016)