RT Book, Section T1 Professor Da Ruan, Distinguished Visitor at Complutense University, Madrid A1 Montero, Javier A1 Vitoriano, Begoña A1 Gomez, Daniel A2 Lu, Jie A2 Kerre, Etienne E. AB This short note is written as a contribution to the memory of Prof. Da Ruan. We shall try to reflect how he was entitled to stay two months (April-May 2011) as “Distinguisher Visitor” at Complutense University, Madrid, based upon his past collaborations without team, and pointing out some of the projects we jointly developed and launched during such a period. Beside the strictly scientific arguments towards his academic excellence, we want to stress his continuous support to explore new initiatives from a sincere and friendly collaboration. PB Springer- verlag SN 978-3-642-30306-7 YR 2013 FD 2013 LK https://hdl.handle.net/20.500.14352/45582 UL https://hdl.handle.net/20.500.14352/45582 LA eng DS Docta Complutense RD 1 may 2024