Alois Sibal (Czech)

Tomas Skala (Czech)

Emil Lupac (Czech)

Jan H. Bursik (Czech)

Jan Pawlikowski (Poland)

Antoni, Marcin & Krzysztof Krupa (Poland)

Branislav Kovacik (Slovakia)

Stanislav Marinov (Slovakia)

Viktor Koos (Hungary)

Balazs Gollob (Hungary)

Lajos & Lajos Konya Jr. (Hungary)

Jozsef (Giuseppe) Budai (Romania)

Vasile Gliga (Romania)