About Grey Systems: Theory and Application
Grey Systems: Theory and Application publishes innovative research on grey systems and uncertainty information analysis. Established by Professor Sifeng Liu at Nanjing University of Aeronautics and Astronautics (NUAA) in 2010, Grey Systems is currently published in association with Northwestern Polytechnical University (NWPU) and NUAA, and is an official journal of the International Association of Grey System and Uncertainty Analysis.
Submission information
Accepted manuscript types and word counts
- Full Length Paper — up to 6500 words
- Book Review — up to 1500 words
- Editorial — up to 3000 words
Please see the article types and word counts section on the about this journal page for more information. The word count includes all text, figures and tables. When estimating your total, please allow 280 words for each figure or table. Read more about the article types for this journal.
Reference style
Use the Harvard reference style. Read more about the reference types for this journal.
Keywords
Please include up to 6 short, relevant keywords that describe the main topics of your paper. When you submit to the journal, you’ll be able to choose keywords that describe the main topics of your paper from a list of recommended keywords, or you can add your own.
Peer review type
Double anonymous peer review. All submissions are sent to at least 2 independent and anonymous reviewers.
Open access options
This is a hybrid journal. Hybrid journals are subscription journals but offer all authors the option to publish their work open access. If you choose to publish open access you will be required to pay an article processing charge (APC). Alternatively you can opt for the green open access route and self-archive your article (at no cost to the author). Read more about our open access options.
Accepted languages
This journal only accepts manuscripts written in UK or US English.
Accepted submission files
Article files should be provided in Microsoft Word format.
There are currently no open calls for papers for this journal. New calls are posted as they become available.
Open access articles
Metrics snapshot
- 2025 Journal Impact Factor (Clarivate)
- 4.4
- Downloaded articles in the last 12 months
- 24910
Publication timeline
- Time to first decision
- 34.8 days
- Acceptance to publication
- 56 days
- Acceptance rate
- 15.1%
