Congratulatory Address by the President of BAS, Academician Julian Revalski

Words about the Holiday by the Writer Georgi Gospodinov

Mihail Videnov  On Some Current Tasks for Bulgarian Linguists

Angel Popov  Defects Formation in Functional Semiconductor Structures with Heterostructured Transition Regions

Alexandre Kostov  Training of the Bulgarian Construction Engineers during the Period 1879÷1918

Josif Avramov  Opportunities for Improving Project Financing of Bulgarian Enterprises by Juncker Plan

Teodora Peneva  Sustainable Development and Energy Poverty

Bulgarian Academy of Sciences in 2019 (According to the Report of the Activity of BAS in 2019)

From the Writings of Renaissance Writers Born in the Lands of the Present-day Republic of Northern Macedonia, Who Call Their Language “Bulgarian” (Continuation of issue 3, 2020)

Nikolay K. Vitanov  140 Years since the Birth of Academician Kiril P opov

Panayot Karagyozov  On History and Memory (110 Years since the Birth of Academician Emil Georgiev , 1910÷1982)

Angel Angelov , Kiril Kirilov  Dialectological and Sociolinguistic Works of Academician Mihail Videnov

Michail Stanchev  Kharkiv National University “Vasily N. Karazin ” Celebrates its 215^th Anniversary

Interview with Prof. Yoana Spasova-Dikova , Scientific Secretary of the “Cultural-historical Heritage and National Identity” Department

Interview with Assoc. Prof. Penka Petrova , Director of the Institute of Microbiology

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Interview with Academician Vil Bakirov , Rector of Kharkiv National University “Vasily N. Karazin”

Interview with Vladimir Salenkov , Co-Chair of Kharkiv City Center for Bulgarian Culture
“Marin Drinov ”

Donation to BAS for Research on COVID-19

BAS Scientists Join the National Operations Headquarters to Fight the Coronavirus

In the Management Board of the Bulgarian Academy of Sciences

Newly Elected Directors of Institutes

Re-elected Directors of Institutes

Pythagorus Award Winners

Academician Aleksandar Popov

Academician Ivan Gutsov