Vassil Stefanov

Rodion Shchedrin

Rodion Shchedrin

Nikolai Petrov

N.Petrov and G.Notev

Jean Angelov

Penderecki, Droba,Kosjakieva

Mihail Milkov

Gilles Apap

Pancho Vladigerov,Vassil Kazandjiev, Ivan Drenikov

Nikos Atheneus

Thomas Kalb

Marin Goleminov

Rumen Skorchev, Plamen Djurov

Vili Kazassian

George Nelson

Igor Kefalidis

Jean-Pierre Mathez, Edition BIM

Prof.Matsumae,prof.H.Nedialkov

Catherine and Marcel Cellier

Marcel Cellier

Rumen Skorchev

Simeon Pironkov

Stela Dimitrova, Nik.Maistorov

Marcel and Katherine Cellier (Suisse)

In Japan

E. Stankovich, V.Kazenin and Zygmunt Krauze

Mark Kadin

Petri Sakari

Martin Pamteleev

Marin Goleminov and Alexander Raichev

Ivan Spassov

Vili Kazassian and Teodossi Spassov

Oleg Galahov

Pierre Colombo (Suisse)

Krassimir Kiurkchiiski

Marin Goleminov, Ivan Spassov

Nikolai Petrov

Kristof Droba (Poland)

Plamen Djurov

Prof.Dr.med. Harald zur Hausen