Manuscripts in Bulgarian or in English are accepted in volume up to 80 thousand characters with spaces and up to 20 images (for articles and studies) and up to 20 thousand characters with spaces and 5 images for other materials (discussions, review of events, book reviews, etc.). Acceptance of texts surpassing the limits is decided by the editorial board. Articles or variants of articles published in another edition, under another name or translated into another language are not accept. Materials are submitted to the editorial board in electronic version. In the journal are published articles in the following categories:

  1. Papers
  2. Reports
  3. Discussions
  4. Reviews
  5. News
  6. In memoriam

Materials are accepted by the Editor-in-chief who sends them to at least two members of the Editorial board. The Editor-in-chief and the reviewers may recommend changes, abridgments or supplements to the paper which the author is obliged to comply with. Articles must have a clear structure.


The title should be short and informative. It is recommended to avoid of acronyms and formulas. Allowed is the use of subtitle.

Names of authors and institutions which they belong to.

Under the title of the article are written consistently the names of the authors (first name and surname without abbreviations). The leading name is of the author with the biggest share in the article. Below are indicated the addresses of the institutions represented by the authors. Postal addresses should be as much detailed as possible, including the name of the country and e-mail of every author and phone number. In the case of co-authorship is needed to be explicitly pointed who the author for correspondence is.


Summary in English and in Bulgarian is required, short (up to 1800 characters) and informative. The abstract presents in brief and clear the object, the main results and the most important conclusions. It repeats the structure of the text in abbreviated form (1/6 to 1/8 of the main text). Abstracts that are directly taken from the main text will not be accepted.


They are required from 3 to 7 keywords in English. The use of general terms, conjunctions and abbreviations is not recommended.

Basic text

Introduction - Specifies the purpose of the study and puts the issue.

Results - The results of the study are formulated precisely and clearly.

Discussion - Explains the importance and presents the results achieved without repeating them. The use of long quotations and discussion of scientific literature is not recommended.

Conclusion - The main conclusions of the study are presented in a separate final section.

Applications (if applicable).


Written in the end of the text and contain the names of individuals and institutions that provided support during the study (eg. translation and /or editing, reading markups, providing illustrative material, etc). Acknowledgements should be placed at the end of the text, not in footnotes. Additional formatting and styling of text is not desirable.


Footnotes should be limited, they contain only brief additions to the main text and not exceed 500 characters in total.


The quotation in the text should be in brackets and contains the surname of the author, year of publication with an interval and then corresponding pages after a comma. Every mentioned publication (in years or different authors) is distinguished by a semicolon. A maximum allowable is the spelling of two authors; when more – et al. is written). The authors are listed in alphabetical order, first in Cyrillic, followed by Latin.

Quotation example: (Станчева 1989; Станчева, Григорова 1976, 216, обр. 13; Karanastassis 1987, 351; Boardman 1985, 206, fig. 202).


In the end of the text should be indicated a list of used scientific literature. The way of quotation is adapted version of the Harvard system. Unpublished results and oral reports are not mentioned in the list of literature. They may appear in the text, but are displayed in a footnote. Cuts in Bulgarian and foreign publications must follow applied for the purpose model.

Obligatory is the use of UNICODE fonts (eg. Arial, Times New Roman).

The texts should be titled with the full title of the material (without abbreviations) and full (unabridged) name and surname of the author/ s in a format .odt, .doc or .rtf.


Accepted are quality colour and black-and-white photos and graphics which should be individual files, numbered in order of their presentation in the text (eg .: fig01.jpg, fig02.jpg, etc). For images are taken photographs, plans, maps and graphics boards. Accepted are images in JPEG or TIFF format, with resolution no less than 300 dpi and graphics in format EPS. Any other format is not allowed.

The texts attached to the images are required and must be submitted on a separate file. Mandatory and explicitly is the mentioning of the author of each image. When using images adapted from publications should be written in brackets the author and the year of publication, which appear on the list of cited literature. When using / borrowing original images a written permission of the author or the publisher is required. There must be a reference for every image that is presented in the following manner (Fig. 1.2; fig.. 2.3-9) / or (fig. 1.2; fig.2.3-9).

The position of the specific image within the main text may be indicated by marking the number in brackets - eg. (Fig. 1) and the latter shall be separate with an interval of one blank line before and after it. Illustrations, which are attached (inserted) into text (.odt, .doc or .rtf) or transmitted / combined into a PDF file, are not acceptable.