-
1
-
2
-
3by Borislav Y. Naumov, Georgi S. Popgeorgiev, Angel V. Dyugmedzhiev, Vladimir A. Beshkov†“...Union of Scientists in Bulgaria...”
Published 2020-12-01
Get full text
Article -
4by Dimitar G. Plachiyski, Georgi S. Popgeorgiev, Stefan G. Avramov, Yurii V. Kornilev“...Union of Scientists in Bulgaria...”
Published 2020-06-01
Get full text
Article -
5