1. Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Materiali (ICMAT), Via Salaria
Km. 29.5, CP 10, 00016 Monterotondo Scalo, Italy
2. Department of Physical and Theoretical Chemistry, Vrije Universiteit Amsterdam,
De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands
3. CTG Italcementi Group, Via Camozzi 124, 24121 Bergamo, Italy