Author
Aleksiev, Serafim
1
Angelova, Elena H.
1
Bender, Klaus W.
1
Csáki, Csaba
1
Engelbrekt, Kjell
1
Höltschi, René
1
Indzova, Reneta
1
Keremidčiev, Spartak
1
Michajlova, Snejina
1
Nikolaev, Rada
1
Parvulov, Svilen
1
Samarin, Aleksandr Viktorovic
1
Stalev, Stojan
1
Stanchev, Krassen
1
Winkel, Georg
1
Wyzan, Michael L.
1