Researcher, Consejo Superior de Investigaciones Científicas (C.S.I.C. – Spanish Council for Scientific Research), Spain
- 2019 - Cindy Lamamy, Gembloux University (B)
- 2019 - Carlotta Bagnasco, Turin University (I)
- 2019 - Pedro Cabral, Evora University (P)
- 2018 - Veronica Nanni, Genova University (I)
- 2016 - Giulia Bombieri, Turin University (I), codirected with M.M. Delgado
- 2015 - L.F. Russo, Madrid University (E), codirected with J.V. López-Bao
- 2014 - Pedro Garrote, Seville University (E) codirected with J.M. Fedriani
- 2013 - R. Stigliano, Rome University (I)
- 2013 - María Sanchez Medina, Seville University (E)
- 2005 - L. Thompson, Reading University (UK)