How to format your references using the Complex Analysis and Operator Theory citation style

This is a short guide how to format citations and the bibliography in a manuscript for Complex Analysis and Operator Theory. 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
Git, A.: Research tools: A recipe for disaster. Nature. 484, 439–440 (2012)
A journal article with 2 authors
Bork, P., Copley, R.: Genome speak. Nature. 409, 815 (2001)
A journal article with 3 authors
Cai, L., Dalal, C.K., Elowitz, M.B.: Frequency-modulated nuclear localization bursts coordinate gene regulation. Nature. 455, 485–490 (2008)
A journal article with 4 or more authors
Hansen, C.J., Esposito, L.W., Stewart, A.I.F., Meinke, B., Wallis, B., Colwell, J.E., Hendrix, A.R., Larsen, K., Pryor, W., Tian, F.: Water vapour jets inside the plume of gas leaving Enceladus. Nature. 456, 477–479 (2008)

Books and book chapters

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

An authored book
Todinov, M.: Reliability and Risk Models. John Wiley & Sons, Ltd, Chichester, UK (2015)
An edited book
Craiger, P., Shenoi, S. eds: Advances in Digital Forensics III: IFIP International Conference on Digital Forensics, National Centre for Forensic Science, Orlando, Florida, January 28-January 31, 2007. Springer, New York, NY (2007)
A chapter in an edited book
Yeung, M.J., Pasieka, J.L.: Surgical Management of Primary Hyperparathyroidism. In: A, K.M.A. and Clark, O.H. (eds.) Handbook of Parathyroid Diseases: A Case-Based Practical Guide. pp. 75–92. Springer US, Boston, MA (2012)

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 Complex Analysis and Operator Theory.

Blog post
Luntz, S.: Cheap, Efficient Electrodes Open Path For Hydrogen Fuel,


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: F-22 Aircraft: Progress of the Engineering and Manufacturing Development Program. U.S. Government Printing Office, Washington, DC (1998)

Theses and dissertations

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

Doctoral dissertation
Manzanares, M.E.: Effect of a preoperative multidisciplinary education program on weight management after bariatric surgery, (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
Swanson, A.: Internal Discord Hinders Trump’s Trade Agenda, (2017)

In-text citations

References should be cited in the text by sequential numbers in square brackets:

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 titleComplex Analysis and Operator Theory
AbbreviationComplex Anal. Oper. Theory
ISSN (print)1661-8254
ISSN (online)1661-8262
ScopeComputational Theory and Mathematics
Applied Mathematics
Computational Mathematics

Other styles