Clinton Gubong Gassi (PhD under supervision of Mostapha Diss and Issofa Moyouwou) (https://sites.google.com/view/clintongubonggassi) and Léa Munich (PhD under supervision of Sylvain Béal and Yannick Gabuthy) (https://sites.google.com/view/lea-munich-homepage/home) have just been recruited, respectively at the University of Evry and the University of Paris 2 Panthéon-Assas.