How to format your references using the Hellenic Journal of Cardiology citation style

This is a short guide how to format citations and the bibliography in a manuscript for Hellenic Journal of Cardiology. For a complete guide how to prepare your manuscript refer to the journal's instructions to authors.

Using reference management software

Typically you don't format your citations and bibliography by hand. The easiest way is to use a reference manager:

PaperpileThe citation style is built in and you can choose it in Settings > Citation Style or Paperpile > Citation Style in Google Docs.
EndNoteFind the style here: output styles overview
Mendeley, Zotero, Papers, and othersThe style is either built in or you can download a CSL file that is supported by most references management programs.
BibTeXBibTeX syles are usually part of a LaTeX template. Check the instructions to authors if the publisher offers a LaTeX template for this journal.

Journal articles

Those examples are references to articles in scholarly journals and how they are supposed to appear in your bibliography.

Not all journals organize their published articles in volumes and issues, so these fields are optional. Some electronic journals do not provide a page range, but instead list an article identifier. In a case like this it's safe to use the article identifier instead of the page range.

A journal article with 1 author
Petrukovich AA. Planetary science. The elusive onset of geomagnetic substorms. Science. 2008;321(5891):920-921.
A journal article with 2 authors
Billinge SJL, Levin I. The problem with determining atomic structure at the nanoscale. Science. 2007;316(5824):561-565.
A journal article with 3 authors
Baksh MM, Jaros M, Groves JT. Detection of molecular interactions at membrane surfaces through colloid phase transitions. Nature. 2004;427(6970):139-141.
A journal article with 7 or more authors
Kurotaki Y, Hatta K, Nakao K, Nabeshima YI, Fujimori T. Blastocyst axis is specified independently of early cell lineage but aligns with the ZP shape. Science. 2007;316(5825):719-723.

Books and book chapters

Here are examples of references for authored and edited books as well as book chapters.

An authored book
Hogan K. The Secret Language of Business. John Wiley & Sons, Inc.; 2008.
An edited book
Nakada SY, Pearle MS, eds. Advanced Endourology: The Complete Clinical Guide. Humana Press; 2006.
A chapter in an edited book
Sonnemann G, Valdivia S. The UNEP/SETAC Life Cycle Initiative. In: Klöpffer W, ed. Background and Future Prospects in Life Cycle Assessment. LCA Compendium – The Complete World of Life Cycle Assessment. Springer Netherlands; 2014:107-144.

Web sites

Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Hellenic Journal of Cardiology.

Blog post
Davis J. Are Health And Fitness Apps Actually Good For You? IFLScience. Published February 21, 2017. Accessed October 30, 2018.


This example shows the general structure used for government reports, technical reports, and scientific reports. If you can't locate the report number then it might be better to cite the report as a book. For reports it is usually not individual people that are credited as authors, but a governmental department or agency like "U. S. Food and Drug Administration" or "National Cancer Institute".

Government report
Government Accountability Office. Tribal Internet Access: Increased Federal Coordination and Performance Measurement Needed. U.S. Government Printing Office; 2016.

Theses and dissertations

Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.

Doctoral dissertation
Wright EA. Assessing Leadership Behaviors and Demographic Characteristics of Project Managers Associated Through LinkedIn. Doctoral dissertation. Northcentral University; 2012.

News paper articles

Unlike scholarly journals, news papers do not usually have a volume and issue number. Instead, the full date and page number is required for a correct reference.

New York Times article
Kelly D. Books in Brief: FICTION. New York Times. March 3, 1996:718.

In-text citations

References should be cited in the text by sequential numbers in superscript:

This sentence cites one reference 1.
This sentence cites two references 1,2.
This sentence cites four references 1–4.

About the journal

Full journal titleHellenic Journal of Cardiology
AbbreviationHellenic J. Cardiol.
ISSN (print)1109-9666
ScopeCardiology and Cardiovascular Medicine

Other styles