Guide for Authors

Guide for Authors

The Author’s Guidelines are prepared following the Journal’s policy to present to the maximum extent all published manuscripts in international scientific databases. The Guidelines are in accordance with INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO). ISO 690: 2021(Е), Information and documentation — Guidelines for bibliographic references and citations to information resources.



Mathematics and Informatics Journal considers manuscripts submitted solely to it.

When sending a manuscript to the Journal, the Author explicitly declares that the manuscript is not already submitted or under consideration for publication elsewhere.

By submitting a manuscript, the Author agrees to follow the Guidelines, requirements and ethical principles for scientific research publishing. The latter’s violation will be considered a refusal of cooperation between the Author and the Journal in future.

Manuscripts that do not correspond to the journal’s scope or manuscripts that are not prepared according to the Guidelines will be rejected without going through blind peer review’s procedure.

Manuscripts should be submitted for consideration electronically as e-mail attachments to It is also acceptable to send the manuscript, together with the appendixes on a CD at the following ground address: 125, Tzarigradsko Shose Blvd., bl. 5, 1113 Sofia, Bulgaria.

For evaluation purposes, it is acceptable to initially submit the manuscript in .pdf format. In such a case, after a decision for publication, the author will be invited to send the manuscript and its source code in a format suitable for the publication activities.

Manuscripts must report original research ideas and results.

The manuscript should be written using LaTeX, Word, or another standard program. Appendices in the form of graphs, tables or illustrations must be readable and processable by programs commonly used for such purposes.

The Journal does not encourage the detailed presentation of commonly known theoretical concepts available in other sources. The Journal reserves the right not to publish manuscripts in which the similarity level exceeds 20%.

The Journal does not encourage the citation of literature that is not relevant to the manuscript’s topic; literature that includes non-textual references or self-citations.

The Author should have a personal scientific identifier (e.g. in Researcher ID/Publons, Scopus, ORCID or Russian Science Citation Index) that presents the author’s activities and manuscripts in front of the international scientific society. The personal scientific ID should be written in the author’s full business card.

The decision for publication or rejection of a manuscript is based on the opinions of anonymous and independent reviewers. The journal informs the author whether the manuscript has been accepted or rejected.


Manuscript preparation

General guidelines

(1) Manuscripts may be submitted in Bulgarian, English or Russian, depending on the author’s opinion or the reviewers’ recommendation.

(2) Recommended manuscript size – up to 25,000 characters for research article and up to 15,000 characters for a book review (along with the spacing between words). There are no text formatting requirements for font type and size.

(3) It is not recommended to specifically format the text itself with regard to tabs, bullets and other similar symbols. Tabs should be used for table layout only.

(4) Manuscripts should be compiled in the following order: title of the paper (without any abbreviations); names of the authors with their scientific degree, academic position and institution; abstract outlining the novelty and results of the study; 3 – 6 keywords; full text; acknowledgments (if any); appendixes (as appropriate); notes; references; full business card of the author(s) – academic position, affiliation, personal ID in scientific databases; postal address, e-mail address.

(5) The abstract should indicate the research goal and methodology, and to outline the research novelty and results. The abstract should correspond to the title, keywords and main text of the study. Recommended abstract volume – 100 – 150 words.

(6) Figures (Illustrations) and their captions should be presented simultaneously with the text and also separately in a new file. If the volume of a figure is not suitable for inserting, its position should be indicated in the text clearly - Fig. 1, Fig. 2, etc.

(7) Tables and their captions should be presented simultaneously with the text and separately in a new file. If the volume of a table is not suitable for inserting, its position should be indicated in the text clearly – Table 1, Table 2, etc. Tables are used for presenting quantities or variables. Plain text tables are not encouraged as they cause troubles in the pre-print and printing process.


Notes and References

(8) Acknowledgments, cited archival sources and notes at the end of the text are written only in the language of the main text of the manuscript.

(9) The references should be cited in Roman script. If there are sources in Cyrillic script, they (authors, titles and sources) should be presented in Roman script – with translation or by transliteration.

(10) The list of references should include sources that can be checked easily by the referees and by the readers as well. The marginal sources without broad visibility should not be included in the list of references. Nevertheless, if such sources are necessary to be cited, they should appear in the list of notes, together with additional explanations or marginal sources for which it is considered that their presence in the main text would burden it unnecessarily. The position of notes within the text should be marked by Arabic numerals as superscripts.

(11) The presentation of references in the reference list shall be made in accordance with BDS ISO 690-2021 Standard (Harvard System). The examples below show how this should be done.


Some examples:

Journal article:

The reference includes: author’s name, year of publication, article’s title, journal’s name (in Italics), volume (in Bold), issue (in brackets), pages.

Zlateva, A., 2019. Reflecting the Level of Social Adaptation in the Drawings of Children Aged 6 – 7. Pedagogika-Pedagogy. 91(5), 687 – 695

Such a source is cited in the text as: (Zlateva 2019). If it is necessary to indicate a specific page (e.g. p. 690), it is indicated as follows: (Zlateva 2019, 690).

If the cited literature is in Cyrillic, two analogous paragraphs are made - in Cyrillic and in Latin:


Online periodicals article:

The article source (accessible web address or DOI) should be placed at the end of the cited source.

Lasquety-Reyes, J. A., 2019. Towards Computer Simulations of Virtue Ethics. Open Philosophy [online]. 2(1), 399 – 413 [viewed 15 April 2021]. Available from:

Have in mind, that:

  • When the article is published in a journal, the journal's name is written in italics.
  • The journal name in English should be written as Mathematics and Informatics;
  • – When citing, it is necessary to indicate the annual volume and the issue of the journal.

– If the source is in a language, different than the body text one, then the original language should be pointed in square brackets at the end as follows:

Stefanov, A., 2020. Kant and the Development of Geometry. Filosofiya-Philosophy, 29(1), 31 – 38 [In Bulgarian].

Hutorskoj, A., 1999. Evristicheskij tip obrazovaniya: rezul’taty nauchno-prakticheskogo issledovaniya. Pedagogika-Pedagogy, 52(7), 15 – 22. [In Russian].

When there are more than three authors, the usage of the abbreviation et al. is also acceptable, as follows:

Nichols, P., Twing, J., Mueller, C.D. & O’Мalley, K., 2010. Standard-setting methods as measurement processes. Educational Measurement: Issues & Practice. 29(1), 14 – 24.

or as:

Nichols, P., et al., 2010. Standard-setting methods as measurement processes. Educational Measurement: Issues & Practice. 29(1), 14 – 24.

Such source is cited in the text as: (Nichols, Twing, Mueller & O’Malley 2010), or as (Nichols et al. 2010) – depending on the way it is stated in the reference list.



In books, the title of the book is written in italics. The author of the manuscript also mentions the city and the publisher of the book.

Atkin, J.M., Black, P. & Coffey, J., 2001. Classroom assessment and the national science education standards. Washington: National Academies Press.

Merion, D.B., 1975. Physics and physical world. Moskva: Mir.

Books, published in Cyrillic, should be presented as:

Such a source is cited in the main text as (Kant 1992).


Edited Books

As shown in the example below, only the title of the cited book / collection is given in italics. The quoted pages are indicated after the city / publisher's name.

Carman, T., 2005. On the Inescapability of Phenomenology. In: D.W. Smith &, A. L. Thomasson (Eds.). Phenomenology and Philosophy of Mind. Oxford: Clarendon Press, 67 – 89.



(12) Before publishing the authors will have the opportunity to check the proof of their paper. The proof should be corrected and returned to the Editor within a week. Major alterations to the text cannot be accepted.



(13) The article publication is announced to the authors with an email containing .pdf file of the article. The copyrights of the published article are journal’s property. The final .pdf file sent to the author should not be freely distributed; the latter includes academic and social networking sites (e.g. and

(14) The authors reserve their right to share the manuscript in such academic and social networking sites in the form it was originally submitted to the journal. After publication, the author should additionally state in a note the volume and journal issue.


Final words

(15) By sending text and/or illustration to the editorial office, the author agrees to submit the rights for their announcement, publication and dissemination for the popularization of the editions of the Publisher – Az-buki National Publishing House.

The author agrees to give Az-buki Publishing House the exclusive rights to use any text and/or illustration published in the journal for the duration of three years, regardless of the territory on which the publisher has the right to use the text in accordance with Bulgarian Copyrights law.

(16) The acceptance of the submitted manuscripts for publication depends strongly on the reviewers’ recommendations. The publishing of the paper does not mean that the editors are in agreement with the points of view advocated by the authors. The editors reserve the right to edit manuscripts when necessary.

(17) There are no charges to individuals or institutions for publication in this journal. The published articles are:

– available in full text for subscribers of the journal;

– available as metadata (title, abstract, keywords, author’s business card) – for all readers.

(18) If the author (or the institution he represents) wishes to enable the article in full text for all readers, the journal can provide such an opportunity through its online page – after paying a royalty fee, reflecting the expenses made for article processing.

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