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DOI (Digital Object Identifier) is an international standard (ISO 26324:2012) of the identification of information, which is appropriated to scientific publications, such as: scientific articles, collections of scientific articles, summaries of conferences, reports of conferences, reviews of scientific articles, theses, applications for grants, patents, reports on scientific work, textbooks, scientific aids, monographs.  For scientific content DOI is assigned by the registration agency Crossref or with a sponsor organization. More information about DOI in the article (link).

The publishing house "Internauka" is the official partner (Sponsoring Member) of Crossref in Europe with the status of Sponsoring Member (statement form register Sponsoring member) and is authorized by administrative, financial, billing, technical issues to represent publishers in Publishers International Linking Association, Inc. (PILA)

 DOI Интернаука   Existence of the DOI identifier demonstrates high technological quality of the edition. It is recommended to assign DOI to all scientific publications. The relevance of the DOI assignment is especially important for journals included or planning to apply for inclusion in the VAK list (for Ukrainian scientific journals, the assignment of DOI to each article is mandatory, according to point 6 of the Procedure for Forming the List of Scientific Professional Publications of Ukraine (Order MES No. 32 of 15.01.2018). Also, the DOI is obligatory for the editions entering into the leading scientometric bases (Scopus, Web of Science).


The publishing house "Internauka" provides services for assigning an individual prefix DOI, which will be permanently assigned to the publishing house (publication, organization, university), entering the Crossref register and connecting to the crossref bibliographic reference system, as well as information support during the work in the Crossref system. 

The publishing house "Internauka" is one of the largest sponsoring organizations of Crossref and cooperates with more than 200 leading universities, scientific organizations and publications in Europe, such as:


Olexander Dovzhenko Hlukhiv National Pedagogical University (prefix DOI: 10.31376)


Ivano-Frankivsk National Technical University of Oil and Gas (prefix DOI: 10.31471)


Donetsk National Technical University (prefix DOI: 10.31474)


Mykolayiv National Agrarian University (prefix DOI: 10.31521)  


Berdiansk State Pedagogical University (prefix DOI: 10.31494)  


Bohdan Khmelnytsky National University Of Cherkasy (prefix DOI: 10.31651)


Vinnytsia Mykhailo Kotsiubynskyi State Pedagogical University (prefix DOI: 10.31652)


State university of telecommunications (prefix DOI: 10.31673)


Ukrainian Pulmonology Journal (prefix DOI: 10.31215)


Asthma and allergy (prefix DOI: 10.31655)


Transfer of Innovative Technologies journal (prefix DOI:10.31493)

Результат пошуку зображень за запитом "Одесская морская академия/ODESSA MARITIME ACADEMY"

Odessa Maritime Academy (prefix DOI: 10.31653)

Результат пошуку зображень за запитом "Odessa State Academy of Civil Engineering and Architecture"

Odessa State Academy of Civil Engineering and Architecture (prefix DOI: 10.31650)

Результат пошуку зображень за запитом "университет крок"

KROK University (prefix DOI: 10.31732)

Результат пошуку зображень за запитом "Українська академия друкарства"

Ukrainian Academy of Print (prefix DOI: 10.32403)



Cooperation procedure:

To start cooperation, it is necessary to issue the contract between the applicant organization and the Internaca Publishing House, which describing terms of cooperation and payment. The publishing house "Internauka" offers for publishers (editions, universities, scientific organizations)  two ways of cooperation on assignment of digital identifiers DOI.

The first option (without paying an annual fee).

1nd option.

The applicant organization is assigned with a unique DOI prefix. To assign DOI suffixes to the publisher (publication, scientific organization, university), it is necessary to post scientific material on its own website and send a link requesting DOI to the e-mail: with the notation "DOI assignment". Within 3-5 business days, an e-mail with information about the assigned DOI will be sent. Under the contract of the organization-applicant with the Publishing house "Internauka" the following payments are provided:

  • CrossRef is not charged for the connection of the Customer to the international system of bibliographic references.
  • The payment for registration of DOI digital identifiers is 6 USD / 155 UAH / 350 rub for DOI. The payment must be made after the assignment of the DOI digital identifiers.

2nd option.

The applicant organization is assigned with a unique DOI prefix, and  provided with a login / password to access the system (personal cabinet) for registration of free 10 DOIs tests in the Crossref system, after testing and payment the applicant organization entered in the Crossref register. From this moment, you will be able to register DOI, view statistics, connect additional services (CrossMark, Similarity Check, Cited-by Linking) and work with them. It should be noted that it is very important to have your own DOI prefix, which belongs exactly to your publisher, organization or magazine, and not transfer the right to register to third parties. This can lead to the loss of affiliation with your magazine in the event of a break in the relationship (the Register of Crossref member ornamentations that have their own prefix is ​​provided on the Crossref website by reference).

Under the contract of the organization applicant with Internauka Publishing house the following payments are provided:

  • Payment of service in connection of the Customer to the international system of bibliographic references CrossRef. It is paid at a time, once a year, together with signing of the contract or extension of the contract of 250 US dollars that is special price offer for publishing houses of Europe. Perhaps payment can be by parts quarterly.
  • Payment for registration of digital identifiers of objects at a rate of 1 US dollar for DOI. The publishing house independently forms identifiers and loads them and metadata of articles into the Crossref system. Payment is made monthly, upon assignment of doi for this monthly, within 10 calendar days from the moment of drawing of the account and the act. Also, the option when employees of IDES of Internaukа are engaged in a marking of articles and formation of identifiers is possible. In that case payment for DOI will make 2 US dollars.

The prefix of DOI and identifiers belong to publishing house (edition)

Requirements to materials to which DOI is appropriated:

  • The registered data have to possess the URL page.
  • The URL page has to be available on a long-term basis.
  • The URL page has to be refreshed in case of her change.

To conclude a contract and start cooperation, it is necessary to send a request to e-mail: c marked "Assignment of DOI", as well as contact information.