Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
3 ta ish
Bulgarian Academy of Sciences
Roumen Kakanakov, Liliana Kassamakova, N. Hristeva +3
L. Kassamakova-Kolaklieva, Roumen Kakanakov, V. Cimalla +4
G. Sarov, Roumen Kakanakov, T. Cholakova +6