The working languages of the "S&T" are Bulgarian, English and Russian.

After request and translation in one of the working languages and sent in the redaction, the manuscripts will be published in all official EU languages.


We recommend that the summary of the report and keywords are in English.

The text has to be typed one-sided on 7 standard sheets of paper, including bibliography, charts and figures. Paper size A4, font-Times New Roman, margins – top 30 mm, bottom, left and right – 20 mm; line spacing – Single, Paragraph, Special: First Line, By: 1 cm; No page numbering.

§  Title in capital letters, not using abbreviations in 12pt, Bold.

The name of the author/authors to be given in full (the name followed by the surname). The names do not need to be written entirely in capital letters in 12pt, Bold.

Affiliation address of the authors should include the name of the university and faculty, postal code, city and country. If the authors are from different institutions, this has to be noted by asterisks above the author's names and addresses correspondingly in 12 pt, Italic

§ The abstract must be printed in 11 pt. The abstract has to contain up to 250 words; under the text of the abstract, 5 key words in English must be included in 10 pt, Italic

§ The text of experimental and other studies must comprise of an introduction, materials and methods, results and discussion, and a bibliography, font size in 12 pt.