2023 Prof Richard Kyle, USA

2020 Prof Rosalia Djenchuraeva, Kyrgyzstan

2020 Prof Richard Hagni, USA

2020 Prof Eduardo Zappettini, Argentina

2018 Dr Sergey Cherkasov, Russia

2018 Prof Reimar Seltmann, UK

2018 Dr Chris Stanley, UK

2014 Dr Richard Grauch, USA

2014 Prof Yuchuan Chen, China

2008 Prof Ochir Gerel, Mongolia

2008 Dr David W. Sinclair, Canada

2008† Dr Jaroslav Aichler, Czech Republic

2006 Prof Pei Rongfu, China

2006 Prof Dmitry Rundqvist, Russia †

2004 Prof Jan Kutina, USA †

1996 Dr Allen V. Heyl, USA †

1996 Prof Charles B. Sclar, USA †

1996 Prof Ludwig Baumann, Germany †

1994 Dr Robert W. Boyle, Canada †

1994 Dr Gunnar Kautsky, Sweden †

1993 Dr Gerhard Tischendorf, Germany †

1993 Prof Miroslav Stemprok, Czech Republic

1990 Dr John Drew Ridge, USA †

1990 Prof Mirko Vaneček, Czech Republic

1990 Prof Hansgeorg Foerster, Germany †