Here are the web-pages of colleagues and friends who have been important in my life and career:

• Luca Rizzi: Associate Professor at SISSA. We shared the same room ("the burial recess") at Università degli Studi dell'Insubria during my PhD course and his Master's degree studies. We have co-authored 3 papers and innumerable drinks.
• Luca Nardo: One of my best friends, biophysicist at Università degli Studi dell'Insubria. We shared countless meals, coffees and jokes and many more we are going to share.
• Ugo Moschella: M.Sc. and PhD supervisor. Professor at Università degli Studi dell'Insubria. 
• Alexander "Sasha" Kamenshchik: Professor and PhD co-supervisor at Università degli Studi dell'Insubria.
• Sergio Cacciatori: Professor at Università degli Studi dell'Insubria.
• Vittorio Gorini: Ex-Professor at Università degli Studi dell'Insubria.
• Marco Bruni: Reader at the Institute of Cosmology and Gravitation, University of Portsmouth. Together with Daniele Bertacca we invented a new class of Unified Dark Matter cosmological models.
• Daniele Bertacca: At the moment (2022) he is researcher in Padova University.  
• David Wands: Professor at and Director of the Institute of Cosmology and Gravitation, University of Portsmouth.
• Júlio C. Fabris: Professor at UFES.
• Davi C. Rodrigues: Professor at UFES.
• Valerio Marra: Professor at UFES.
• Luca Amendola: My host during my sabbatical as Humboldt fellow at the Institut für theoretische Physik at the Universität Heidelberg. If you want to know what Dark Energy is, ask him.
• Adrià Gomez-Valent: Former post-doc at the Institut für theoretische Physik at the Universität Heidelberg, where we met. Now (2022) post-doc at Rome 2 (Tor Vergata).
• Richard Kerner: See https://fr.wikipedia.org/wiki/Richard_Kerner 
• Isaac Torres. Former PhD student, now professor at UFPA.
• Tays Miranda de Andrade. Former PhD student, now post-doc in Finland.
• Leonardo Giani. Former PhD student, now post-doc in Australia.