From left: Yana Steudel (Berlin), Kimiko Sekiguchi (Tsukuba), Ralf Steudel (Berlin) and Akira Sekiguchi (Tsukuba) on 05 August 2014, Restaurant of the Reichstag Buildung in Berlin:

From left: Ralf Steudel (Berlin), Norihiro Tokitoh (Kyoto), Kimiko Sekiguchi (Tsukuba), Yana Steudel (Berlin) and Akira Sekiguchi (Tsukuba) on 05 August 2014, On Top of the Reichstag in Berlin:

From left: Prof. Dr. Peter Luger (FU Berlin) with spouse Ruth, Dr. Stephanie Dawson (de Gruyter), Dr. Yana Steudel (FIZ Chemie Berlin) and Prof. Dr. Ralf Steudel at Hoffest of de Gruyter Publishers on 10 June 2011:

R.S. with Dr. Bernhard Schreiner (Linde AG) at Chemiepark Leuna near Merseburg on 20 July 2010:

From left: Prof. Richard Wong Ming Wah, Prof. Andy Hor Tzi Sum, Prof. Lee Hian Kee (Dean),
Prof. Ralf Steudel and Dr. Yana Steudel at the Faculty Club of the National University of Singapore (March 2004):

From left: Prof. Ralf Steudel, Dr. Yana Steudel, Prof. Dr. Robert West and Prof. Dr. Petey Young at the Opera Café in Berlin (April 2003):

Steudels as guests of Professor Toshikazu Takata in Osaka (Osaka Prefecture University, Deptm. of Applied Chemistry); April 2002:

Research Group of Prof. Steudel in April 1993. From left: Ralf Steudel, Ursula Westphal, Monika Kustos, Maria Papavassiliou, Kerstin Thiel, Heinar Schmidt, Markus Pridöhl, Klaus Bergemann, Per Krüger, Vera Münchow, Angela Albertsen, Jörg Albertsen, Stefan Förster, Birger Holz:

A pioneer car built by Horst Steudel, the grandfather of Ralf Steudel, (Kamenz, Saxony, around 1900) :