May 23-27 2016, Institut Mittag Leffler, Stockholm, Sweden
May 2-3 2016, University Angers, Angers, France.
April 25-30 2016, University; Nice Sophia Antipolis, Nice, France.
January 11-15 2016, University of Roma Tor Vergata, Rome, Italy.
20 September-28 October 2016, Cuernavaca, Mexico.
with Adrien Dubouloz, arxiv:1611.03248.
with Wael Mahboub et Mark Spivakovsky, arxiv:1611.06392.