I am currently attempting to submit my work to Springer Open. They have specified that the article should adhere to the BioMed Central article format (bmcart) along with BibTeX. However, upon careful observation of the articles they have published, a significant discrepancy in the bibliography format arises. The published articles utilize the APA 7th edition format, whereas bmcart lacks this option, providing only the vancouver and bmcart styles. Due to the absence of the APA 7th style in the .bst files, I attempted to test the use of the IEEEtran.bst to determine if bmcart supports alternative bibstyles.
\documentclass[twocolumn]{bmcart}
%%% Load packages
%\usepackage{amsthm,amsmath}
%\RequirePackage{natbib}
%\RequirePackage[authoryear]{natbib}% uncomment this for author-year bibliography
%\RequirePackage{hyperref}
\usepackage[utf8]{inputenc} %unicode support
%\usepackage[applemac]{inputenc} %applemac support if unicode package fails
%\usepackage[latin1]{inputenc} %UNIX support if unicode package fails
%%% Begin ...
\begin{document}
\section*{Content}
Text and results for this section, as per the individual journal's instructions for authors. \cite{koon,oreg,khar,zvai,xjon,schn,pond,smith,marg,hunn,advi,koha,mouse}
\begin{backmatter}
\bibliographystyle{IEEEtran} % Style BST file (bmc-mathphys, vancouver, spbasic).
\bibliography{bmc_article} % Bibliography file (usually '*.bib' )
\end{backmatter}
\end{document}
%%%%%%
The comment mentioned above has been left as is in accordance with the original file format of bmcart.
%%%%%%
The following image illustrates the differences in bibliographic styles resulting from the compilation using two distinct BibTeX styles: bmc-mathphys.bst (original formating) and IEEEtran.bst
It appears that BMCart does, to some extent, support an alternative bibliography style. However, the numbering remains unchanged from its original style.
The issue at hand is that articles submitted to Springer Open are expected to follow the APA 7th edition format for their bibliography. While Springer Open does not explicitly state the use of APA 7th edition, my assumption stems from the fact that their recent articles adhere to this format. My main concern is whether it is possible to implement the APA 7th edition format in bmcart.cls. It seems that bmcart does not support the use of alternative bibstyles to some extent (though theoretically, it should be possible given that published articles use the APA 7th edition; however, the specific procedure is unclear to me).
The BioMed Central format specified by Springer Open can be accessed through the following link: http://media.biomedcentral.com/content/production/bmc_article-tex.zip
Thank you for your attention, and I hope you can assist me in this matter.

bmc-mathphysbib style, yet you report that you actually appear to use theIEEEtranbib style. Quick question: After changing the argument of\bibliographystyletobmc-mathphys, did you run a full recompile cycle -- consisting of running LaTeX, BibTeX, and LaTeX twice more? What does the .blg ("BibTeX log") file say regarding which bib style was employed by BibTeX? – Mico Jan 03 '24 at 03:07IEEEtranbibliography style when the instructions say to use thebmc-mathphysbibliography style? Please advise. – Mico Jan 03 '24 at 03:12Springer Open explicitly states the use of the bmcart format for submission. However, upon careful observation of the articles they have published, a significant discrepancy in the bibliography format arises. The published articles utilize the APA 7th edition format, whereas bmcart lacks this option, providing only the Vancouver and bmcart styles.
– RaihanBaiz Jan 03 '24 at 03:25bcmart), and (b) the bibliography style that's in use (possiblybmc-mathphys, but maybe something else). You keep referring tobcmartin your comments, but the document class does not determine the formatting of the bibliographic items. Instead, it's the bibliography style that matters here. AsIEEEtranbib style makes no claim whatsoever as to implementing the APA7 guidelines, it's unclear to me why you would hold upIEEEtranas some kind of benchmark. What are you trying to do? – Mico Jan 03 '24 at 05:04bmc-mathphysbibliography style (which predates the release of APA7 by several years and hence is rather unlikely to implement APA7 guidlines). Where does your insistence on following APA7 guidelines come from? – Mico Jan 03 '24 at 05:17natbib, the bibliography is still generated. RegardingIEEEtran, my observation is that the document class seems to affect the generated bibliography style (.bstfile). Even when using a different bibliography style other thanIEEEtran, the outcome remains consistent, not aligning with the initially intended bibliography style. – RaihanBaiz Jan 03 '24 at 06:14IEEEtranbibliography style might shed light on any of your stated concerns. The submission guidelines are quite self-explanatory: employbmc_article.texas a template for your document, employ thebmc-mathphysbib style, include the line@settings{label, options="nameyear"}in the bib file, and include the instruction\nocite{label}in the body of the tex file. – Mico Jan 03 '24 at 07:03