Renzo Ricca in Great Court with Kimberly Schumacher, Clive Marsland and Gareth on the occasion of Sir Michael Atiyah installation as Master of Trinity College (Cambridge, UK). October, 1990.

Bradin Cormack and Renzo Ricca at the Senate House on Graduation Day (Cambridge, UK). February, 1991.

Renzo Ricca and Zhen-Xu He at the Institute for Advanced Study (Princeton). March, 1991.

Renzo Ricca and Tsutomu Kambe on the «Majakovskii» ship, from Perm to Moscow (USSR). June, 1991.

John Bridges, Renzo Ricca, Fazle Hussain and Robert Metcalfe on the “Majakovskij” ship, near Perm (USSR). June, 1991.

Alexander Rubenchik and Renzo Ricca at the GUM stores (Moscow, USSR). June 1991.

Renzo Ricca and Victor Yanovskii near the Cremlin (Moscow, USSR). June 1991.

Renzo Ricca and Victor Yanovskii near the Cremlin (Moscow, USSR). June 1991.

Alexander Chernikov and son (left), Renzo Ricca and Chernikov’s wife Galina (center), Andrew Gilbert, Alexander Natenzon and daughter (Santa Barbara, USA). October 1991.

Renzo Ricca “Research Fellow” of University College London (London). September 1992.

Renzo Ricca and Vladimir Arnold at the Newton Institute (Cambridge, UK). July, 1992.

Renzo Ricca and Robert Betchov at the Mathematics Department in Geneva. January, 1995.

Renzo Ricca “Senior Research Fellow” and “UCL Lecturer” (London). April 1995.

Vyacheslav (Slava) Meleschko (far left), Hassan Aref and Renzo Ricca at the XIX International Congress of Theoretical and Applied Mechanics in Kyoto. August 1996.

Renzo Ricca, Yoshifumi Kimura, Konrad Bajer, Keith Moffatt and Vladimir Vladimirov in Kyoto. August 1996.

EC-JRC Summer School on “Turbulence and Applications” (Centre for Scientific Culture “A. Volta”, Como, Italy). September 1998.