Get an email when this journal's indexing changes
Added to or removed from Scopus, Web of Science, ABDC, DOAJ, FT50, UT Dallas or ONOS. One confirmation click; unsubscribe anytime.
International Journal of Systems Science is Scopus-indexed (Q1, CiteScore 8.1), WoS SCIE. It is covered by India's One Nation One Subscription scheme for reading access. Published by Taylor and Francis Ltd..
Checked against the index lists dated .
ISSN 0020-7721Verify ISSN ↗1464-5319Verify ISSN ↗
Publisher: Taylor and Francis Ltd.
Cost to publish: No APC data — check the publisher
| Subject area | Rank | Pctile | Q |
|---|---|---|---|
| Theoretical Computer Science | 21 / 135 | 84th | Q1 |
| Control and Systems Engineering | 72 / 390 | 81st | Q1 |
| Computer Science Applications | 203 / 1022 | 80th | Q1 |
Not listed in: DOAJ, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (APC covered)
Yes — actively indexed in Scopus, coverage 1970–present, best quartile Q1, CiteScore 8.1.
International Journal of Systems Science is Q1 in Theoretical Computer Science (rank 21 of 135), Q1 in Control and Systems Engineering (rank 72 of 390) and Q1 in Computer Science Applications (rank 203 of 1022), by CiteScore 2025.
International Journal of Systems Science is indexed in the Science Citation Index Expanded, so it may have a Journal Impact Factor in Clarivate's Journal Citation Reports. JCR is paid, so check it for the current value. The closest free measure is its Scopus CiteScore 8.1, which places it in quartile Q1 at the 84th percentile of its subject. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 1.026, quartile Q1, with an H-index of 93.
International Journal of Systems Science is published by Taylor and Francis Ltd. Its print ISSN is 0020-7721 and its online ISSN is 1464-5319.
Yes. It is part of the One Nation One Subscription (ONOS) national subscription, so readers at participating Indian institutions get its full text. ONOS does not cover its article processing charge.
Yes — indexed in the Science Citation Index Expanded.
No — it is not registered as an open-access journal in DOAJ or Scopus.
International Journal of Systems Science has an h-index of 109 and a 2-year mean of 3.62 citations per paper (OpenAlex). Its Scopus CiteScore is 8.1, quartile Q1. On 2-year citations it ranks #26 of 125 Scopus journals in Theoretical Computer Science.
International Journal of Systems Science published 407 papers in 2025. 2026* is the year so far.
h-index, i10-index and 2-year mean citedness are open, licence-clear metrics from OpenAlex — not a proprietary impact factor. The subject rank counts only journals that OpenAlex has a figure for; it is not a Scopus or Clarivate ranking. Updated 2026-10-14.
In its latest 100 research articles (2026), authors are most often from China (54.3%), United States (9.8%) and India (6.7%). More than half of recent authorship comes from one country.
Countries are counted fractionally, so a paper by authors from two countries counts half to each.
Scopus status: Active. 1 retracted paper is recorded (0.1 per 1,000 papers). The Problematic Paper Screener flags none of its papers. These are indicators to check, not findings against the journal.
Retractions from OpenAlex; flags from the Problematic Paper Screener (Cabanac, Labbé & Magazinov, CC BY), 2026-09-21 export. A flag marks a paper for a closer look; it is not a finding against the journal.
Index data is curated from public sources (Scopus, Web of Science, ABDC, FT50, UT Dallas, DOAJ). CiteScore and quartiles reflect the latest available Scopus release. Always verify a journal's current status on its official source before submitting.
Comments load as you scroll here.