Aristóteles T. Alencar
São Paulo,
SP, Brazil
Kimio Koketsu
Tokyo,
Japan
Cesare Giannelli
Perugia,
PG, Italy
Marcus Perini
Verona,
VR, Italy
Hans H. Bom
Ermelo,
Netherlands
Rainer Rauhut
Rottenbuch,
Germany
Olivier Pingel
Paris,
France
Ernie Quist
Dordrecht,
Netherlands
Clemens Reiss
Königstein Im Taunus,
Germany
Robert Frew
London,
United Kingdom
Filip Devroe
Gent,
Belgium